122101212100100 has 72 divisors (see below), whose sum is σ = 265475557414368. Its totient is φ = 48745434707200.

The previous prime is 122101212100093. The next prime is 122101212100169. The reversal of 122101212100100 is 1001212101221.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 189900155 + ... + 190542045.

It is an arithmetic number, because the mean of its divisors is an integer number (3687160519644).

Almost surely, 2^{122101212100100} is an apocalyptic number.

122101212100100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122101212100100 is an abundant number, since it is smaller than the sum of its proper divisors (143374345314268).

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

122101212100100 is a wasteful number, since it uses less digits than its factorization.

122101212100100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645605 (or 645598 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 122101212100100 its reverse (1001212101221), we get a palindrome (123102424201321).

The spelling of 122101212100100 in words is "one hundred twenty-two trillion, one hundred one billion, two hundred twelve million, one hundred thousand, one hundred".