121002200022 has 48 divisors (see below), whose sum is σ = 269372113920. Its totient is φ = 36203172720.

The previous prime is 121002200021. The next prime is 121002200027. The reversal of 121002200022 is 220002200121.

It is a junction number, because it is equal to n+sod(n) for n = 121002199980 and 121002200007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121002200021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 997518 + ... + 1112225.

It is an arithmetic number, because the mean of its divisors is an integer number (5611919040).

Almost surely, 2^121002200022 is an apocalyptic number.

121002200022 is an abundant number, since it is smaller than the sum of its proper divisors (148369913898).

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

121002200022 is a wasteful number, since it uses less digits than its factorization.

121002200022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2109849 (or 2109838 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 121002200022 its reverse (220002200121), we get a palindrome (341004400143).

Subtracting 121002200022 from its reverse (220002200121), we obtain a palindrome (99000000099).

It can be divided in two parts, 12100 and 2200022, that added together give a palindrome (2212122).

The spelling of 121002200022 in words is "one hundred twenty-one billion, two million, two hundred thousand, twenty-two".