121100000202 has 24 divisors (see below), whose sum is σ = 262781513280. Its totient is φ = 40305408360.

The previous prime is 121100000183. The next prime is 121100000207. The reversal of 121100000202 is 202000001121.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (121100000207) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5092674 + ... + 5116397.

It is an arithmetic number, because the mean of its divisors is an integer number (10949229720).

Almost surely, 2^121100000202 is an apocalyptic number.

121100000202 is an abundant number, since it is smaller than the sum of its proper divisors (141681513078).

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

121100000202 is a wasteful number, since it uses less digits than its factorization.

121100000202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10209738 (or 10209735 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 121100000202 its reverse (202000001121), we get a palindrome (323100001323).

The spelling of 121100000202 in words is "one hundred twenty-one billion, one hundred million, two hundred two", and thus it is an aban number.