122555305212428 has 12 divisors (see below), whose sum is σ = 233969219041992. Its totient is φ = 55706956914720.

The previous prime is 122555305212413. The next prime is 122555305212469. The reversal of 122555305212428 is 824212503555221.

It is a super-2 number, since 2×122555305212428² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1392673922825 + ... + 1392673922912.

It is an arithmetic number, because the mean of its divisors is an integer number (19497434920166).

Almost surely, 2^{122555305212428} is an apocalyptic number.

It is an amenable number.

122555305212428 is a deficient number, since it is larger than the sum of its proper divisors (111413913829564).

122555305212428 is a wasteful number, since it uses less digits than its factorization.

122555305212428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2785347845752 (or 2785347845750 counting only the distinct ones).

The product of its (nonzero) digits is 1920000, while the sum is 47.

Adding to 122555305212428 its reverse (824212503555221), we get a palindrome (946767808767649).

The spelling of 122555305212428 in words is "one hundred twenty-two trillion, five hundred fifty-five billion, three hundred five million, two hundred twelve thousand, four hundred twenty-eight".