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123214102220 = 22511797089419
BaseRepresentation
bin111001011000000100…
…0011111111011001100
3102210001000001220212102
41302300020133323030
54004320302232340
6132334225454232
711621234405546
oct1626010377314
9383030056772
10123214102220
114828916a750
121ba681a1378
13b8080529c1
145d6c162696
15331223c215
hex1cb021fecc

123214102220 has 48 divisors (see below), whose sum is σ = 285845414400. Its totient is φ = 44237968320.

The previous prime is 123214102199. The next prime is 123214102241. The reversal of 123214102220 is 22201412321.

It is an interprime number because it is at equal distance from previous prime (123214102199) and next prime (123214102241).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 123214102192 and 123214102201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3527330 + ... + 3562089.

It is an arithmetic number, because the mean of its divisors is an integer number (5955112800).

Almost surely, 2123214102220 is an apocalyptic number.

123214102220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123214102220 is an abundant number, since it is smaller than the sum of its proper divisors (162631312180).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123214102220 is a wasteful number, since it uses less digits than its factorization.

123214102220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7089518 (or 7089516 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 123214102220 its reverse (22201412321), we get a palindrome (145415514541).

The spelling of 123214102220 in words is "one hundred twenty-three billion, two hundred fourteen million, one hundred two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 79 110 158 220 316 395 790 869 1580 1738 3476 4345 8690 17380 7089419 14178838 28357676 35447095 70894190 77983609 141788380 155967218 311934436 389918045 560064101 779836090 1120128202 1559672180 2240256404 2800320505 5600641010 6160705111 11201282020 12321410222 24642820444 30803525555 61607051110 123214102220