121100200210 has 32 divisors (see below), whose sum is σ = 237825087552. Its totient is φ = 44031190080.

The previous prime is 121100200187. The next prime is 121100200241. The reversal of 121100200210 is 12002001121.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 930357 + ... + 1052503.

It is an arithmetic number, because the mean of its divisors is an integer number (7432033986).

Almost surely, 2^121100200210 is an apocalyptic number.

121100200210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121100200210 is a deficient number, since it is larger than the sum of its proper divisors (116724887342).

121100200210 is a wasteful number, since it uses less digits than its factorization.

121100200210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131178.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 121100200210 its reverse (12002001121), we get a palindrome (133102201331).

The spelling of 121100200210 in words is "one hundred twenty-one billion, one hundred million, two hundred thousand, two hundred ten".