121200323210 has 64 divisors (see below), whose sum is σ = 235606579200. Its totient is φ = 44752173312.

The previous prime is 121200323191. The next prime is 121200323221. The reversal of 121200323210 is 12323002121.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26124071 + ... + 26128709.

It is an arithmetic number, because the mean of its divisors is an integer number (3681352800).

Almost surely, 2^121200323210 is an apocalyptic number.

121200323210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121200323210 is a deficient number, since it is larger than the sum of its proper divisors (114406255990).

121200323210 is a wasteful number, since it uses less digits than its factorization.

121200323210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8615.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 121200323210 its reverse (12323002121), we get a palindrome (133523325331).

The spelling of 121200323210 in words is "one hundred twenty-one billion, two hundred million, three hundred twenty-three thousand, two hundred ten".