121021010022 has 32 divisors (see below), whose sum is σ = 266660169984. Its totient is φ = 36309932000.

The previous prime is 121021010009. The next prime is 121021010027. The reversal of 121021010022 is 220010120121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121021010027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9070818 + ... + 9084149.

It is an arithmetic number, because the mean of its divisors is an integer number (8333130312).

Almost surely, 2^121021010022 is an apocalyptic number.

121021010022 is an abundant number, since it is smaller than the sum of its proper divisors (145639159962).

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

121021010022 is a wasteful number, since it uses less digits than its factorization.

121021010022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18155084.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 121021010022 its reverse (220010120121), we get a palindrome (341031130143).

The spelling of 121021010022 in words is "one hundred twenty-one billion, twenty-one million, ten thousand, twenty-two".