122121156170 has 32 divisors (see below), whose sum is σ = 236757330432. Its totient is φ = 45085142592.

The previous prime is 122121156167. The next prime is 122121156181. The reversal of 122121156170 is 71651121221.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1041959 + ... + 1153221.

It is an arithmetic number, because the mean of its divisors is an integer number (7398666576).

Almost surely, 2^122121156170 is an apocalyptic number.

122121156170 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122121156170 is a deficient number, since it is larger than the sum of its proper divisors (114636174262).

122121156170 is a wasteful number, since it uses less digits than its factorization.

122121156170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119726.

The product of its (nonzero) digits is 1680, while the sum is 29.

Adding to 122121156170 its reverse (71651121221), we get a palindrome (193772277391).

The spelling of 122121156170 in words is "one hundred twenty-two billion, one hundred twenty-one million, one hundred fifty-six thousand, one hundred seventy".