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12222202124 = 221119127115117
BaseRepresentation
bin10110110001000000…
…00000000100001100
31011112210020012100202
423120200000010030
5200012340431444
65340444113032
7611610001226
oct133040000414
934483205322
1012222202124
1152021293a0
122451235778
1311ca1c3682
1483d33d416
154b801334e
hex2d880010c

12222202124 has 48 divisors (see below), whose sum is σ = 24754974720. Its totient is φ = 5221661760.

The previous prime is 12222202087. The next prime is 12222202129. The reversal of 12222202124 is 42120222221.

It is a super-2 number, since 2×122222021242 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12222202096 and 12222202105.

It is not an unprimeable number, because it can be changed into a prime (12222202129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48614 + ... + 163730.

It is an arithmetic number, because the mean of its divisors is an integer number (515728640).

Almost surely, 212222202124 is an apocalyptic number.

It is an amenable number.

12222202124 is an abundant number, since it is smaller than the sum of its proper divisors (12532772596).

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

12222202124 is a wasteful number, since it uses less digits than its factorization.

12222202124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115278 (or 115276 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 12222202124 its reverse (42120222221), we get a palindrome (54342424345).

The spelling of 12222202124 in words is "twelve billion, two hundred twenty-two million, two hundred two thousand, one hundred twenty-four".

Divisors: 1 2 4 11 19 22 38 44 76 127 209 254 418 508 836 1397 2413 2794 4826 5588 9652 26543 53086 106172 115117 230234 460468 1266287 2187223 2532574 4374446 5065148 8748892 14619859 24059453 29239718 48118906 58479436 96237812 160818449 277777321 321636898 555554642 643273796 1111109284 3055550531 6111101062 12222202124