121000022002122 has 64 divisors (see below), whose sum is σ = 271531622736000. Its totient is φ = 35721493309440.

The previous prime is 121000022002091. The next prime is 121000022002147. The reversal of 121000022002122 is 221200220000121.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 209226379 + ... + 209803902.

It is an arithmetic number, because the mean of its divisors is an integer number (4242681605250).

Almost surely, 2^{121000022002122} is an apocalyptic number.

121000022002122 is an abundant number, since it is smaller than the sum of its proper divisors (150531600733878).

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

121000022002122 is a wasteful number, since it uses less digits than its factorization.

121000022002122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419030471.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 121000022002122 its reverse (221200220000121), we get a palindrome (342200242002243).

The spelling of 121000022002122 in words is "one hundred twenty-one trillion, twenty-two million, two thousand, one hundred twenty-two".