120121202110 has 64 divisors (see below), whose sum is σ = 266227258752. Its totient is φ = 38000295936.

The previous prime is 120121202083. The next prime is 120121202119. The reversal of 120121202110 is 11202121021.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120121202119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2223742 + ... + 2277118.

It is an arithmetic number, because the mean of its divisors is an integer number (4159800918).

Almost surely, 2^120121202110 is an apocalyptic number.

120121202110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

120121202110 is an abundant number, since it is smaller than the sum of its proper divisors (146106056642).

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

120121202110 is a wasteful number, since it uses less digits than its factorization.

120121202110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55877.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 120121202110 its reverse (11202121021), we get a palindrome (131323323131).

The spelling of 120121202110 in words is "one hundred twenty billion, one hundred twenty-one million, two hundred two thousand, one hundred ten".