101220121122 has 64 divisors (see below), whose sum is σ = 208548684288. Its totient is φ = 32731776000.

The previous prime is 101220121111. The next prime is 101220121129. The reversal of 101220121122 is 221121022101.

It is not an unprimeable number, because it can be changed into a prime (101220121129) 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, 44065078 + ... + 44067374.

It is an arithmetic number, because the mean of its divisors is an integer number (3258573192).

Almost surely, 2^101220121122 is an apocalyptic number.

101220121122 is an abundant number, since it is smaller than the sum of its proper divisors (107328563166).

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

101220121122 is a wasteful number, since it uses less digits than its factorization.

101220121122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3275.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 101220121122 its reverse (221121022101), we get a palindrome (322341143223).

The spelling of 101220121122 in words is "one hundred one billion, two hundred twenty million, one hundred twenty-one thousand, one hundred twenty-two".