121021022200 has 48 divisors (see below), whose sum is σ = 303018027480. Its totient is φ = 44684684160.

The previous prime is 121021022197. The next prime is 121021022219. The reversal of 121021022200 is 2220120121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23270674 + ... + 23275873.

Almost surely, 2^121021022200 is an apocalyptic number.

121021022200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121021022200 is an abundant number, since it is smaller than the sum of its proper divisors (181997005280).

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

121021022200 is a wasteful number, since it uses less digits than its factorization.

121021022200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46546576 (or 46546567 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 121021022200 its reverse (2220120121), we get a palindrome (123241142321).

The spelling of 121021022200 in words is "one hundred twenty-one billion, twenty-one million, twenty-two thousand, two hundred".