122155432025 has 36 divisors (see below), whose sum is σ = 166599297900. Its totient is φ = 88784572800.

The previous prime is 122155431991. The next prime is 122155432027. The reversal of 122155432025 is 520234551221.

It can be written as a sum of positive squares in 6 ways, for example, as 43943479129 + 78211952896 = 209627^2 + 279664^2 .

It is not a de Polignac number, because 122155432025 - 2¹² = 122155427929 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122155431982 and 122155432000.

It is not an unprimeable number, because it can be changed into a prime (122155432027) by changing a digit.

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 35 ways as a sum of consecutive naturals, for example, 5157911 + ... + 5181539.

It is an arithmetic number, because the mean of its divisors is an integer number (4627758275).

Almost surely, 2^122155432025 is an apocalyptic number.

It is an amenable number.

122155432025 is a deficient number, since it is larger than the sum of its proper divisors (44443865875).

122155432025 is a wasteful number, since it uses less digits than its factorization.

122155432025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25370 (or 25354 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 32.

Adding to 122155432025 its reverse (520234551221), we get a palindrome (642389983246).

The spelling of 122155432025 in words is "one hundred twenty-two billion, one hundred fifty-five million, four hundred thirty-two thousand, twenty-five".