121100202 has 12 divisors (see below), whose sum is σ = 262383810. Its totient is φ = 40366728.

The previous prime is 121100171. The next prime is 121100219. The reversal of 121100202 is 202001121.

It can be written as a sum of positive squares in only one way, i.e., 94070601 + 27029601 = 9699^2 + 5199^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3363877 + ... + 3363912.

Almost surely, 2^121100202 is an apocalyptic number.

121100202 is an abundant number, since it is smaller than the sum of its proper divisors (141283608).

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

121100202 is a wasteful number, since it uses less digits than its factorization.

121100202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6727797 (or 6727794 counting only the distinct ones).

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

The square root of 121100202 is about 11004.5536938124. The cubic root of 121100202 is about 494.7452377436.

Adding to 121100202 its reverse (202001121), we get a palindrome (323101323).

The spelling of 121100202 in words is "one hundred twenty-one million, one hundred thousand, two hundred two".