100121221122 has 32 divisors (see below), whose sum is σ = 215681514048. Its totient is φ = 30801414336.

The previous prime is 100121221099. The next prime is 100121221147. The reversal of 100121221122 is 221122121001.

100121221122 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 380368 + ... + 587300.

It is an arithmetic number, because the mean of its divisors is an integer number (6740047314).

Almost surely, 2^100121221122 is an apocalyptic number.

100121221122 is an abundant number, since it is smaller than the sum of its proper divisors (115560292926).

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

100121221122 is a wasteful number, since it uses less digits than its factorization.

100121221122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213154.

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

Adding to 100121221122 its reverse (221122121001), we get a palindrome (321243342123).

The spelling of 100121221122 in words is "one hundred billion, one hundred twenty-one million, two hundred twenty-one thousand, one hundred twenty-two".