122100200170 has 64 divisors (see below), whose sum is σ = 251465951520. Its totient is φ = 42352063488.

The previous prime is 122100200081. The next prime is 122100200171. The reversal of 122100200170 is 71002001221.

It can be written as a sum of positive squares in 16 ways, for example, as 111365809 + 121988834361 = 10553^2 + 349269^2 .

It is not an unprimeable number, because it can be changed into a prime (122100200171) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 298177 + ... + 577156.

Almost surely, 2^122100200170 is an apocalyptic number.

122100200170 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122100200170 is an abundant number, since it is smaller than the sum of its proper divisors (129365751350).

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

122100200170 is a wasteful number, since it uses less digits than its factorization.

122100200170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 875419.

The product of its (nonzero) digits is 56, while the sum is 16.

Adding to 122100200170 its reverse (71002001221), we get a palindrome (193102201391).

The spelling of 122100200170 in words is "one hundred twenty-two billion, one hundred million, two hundred thousand, one hundred seventy".