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122112001210 = 2512211200121
BaseRepresentation
bin111000110111001110…
…0010100010010111010
3102200012012021101111111
41301232130110102322
54000041133014320
6132033015550534
711552022612223
oct1615634242272
9380165241444
10122112001210
114787304a971
121b7bb08b44a
13b690917924
145ca5a3824a
15329a5dda5a
hex1c6e7144ba

122112001210 has 8 divisors (see below), whose sum is σ = 219801602196. Its totient is φ = 48844800480.

The previous prime is 122112001177. The next prime is 122112001241. The reversal of 122112001210 is 12100211221.

It can be written as a sum of positive squares in 2 ways, for example, as 120431903089 + 1680098121 = 347033^2 + 40989^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1221120012102 (a number of 23 digits) contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 6105600051 + ... + 6105600070.

Almost surely, 2122112001210 is an apocalyptic number.

122112001210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122112001210 is a deficient number, since it is larger than the sum of its proper divisors (97689600986).

122112001210 is a wasteful number, since it uses less digits than its factorization.

122112001210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12211200128.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 122112001210 its reverse (12100211221), we get a palindrome (134212212431).

The spelling of 122112001210 in words is "one hundred twenty-two billion, one hundred twelve million, one thousand, two hundred ten".

Divisors: 1 2 5 10 12211200121 24422400242 61056000605 122112001210