121222002020202 has 64 divisors (see below), whose sum is σ = 278074460851200. Its totient is φ = 39103522182720.

The previous prime is 121222002020183. The next prime is 121222002020237. The reversal of 121222002020202 is 202020200222121.

It is a super-2 number, since 2×121222002020202² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

121222002020202 is a modest number, since divided by 2020202 gives 1212220 as remainder.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 240652068 + ... + 241155264.

It is an arithmetic number, because the mean of its divisors is an integer number (4344913450800).

Almost surely, 2^{121222002020202} is an apocalyptic number.

121222002020202 is an abundant number, since it is smaller than the sum of its proper divisors (156852458830998).

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

121222002020202 is a wasteful number, since it uses less digits than its factorization.

121222002020202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 647148 (or 647142 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 121222002020202 its reverse (202020200222121), we get a palindrome (323242202242323).

The spelling of 121222002020202 in words is "one hundred twenty-one trillion, two hundred twenty-two billion, two million, twenty thousand, two hundred two".