121331323212110 has 64 divisors (see below), whose sum is σ = 244786567415040. Its totient is φ = 42925535185920.

The previous prime is 121331323212101. The next prime is 121331323212131. The reversal of 121331323212110 is 11212323133121.

It is a self number, because there is not a number n which added to its sum of digits gives 121331323212110.

It is a congruent number.

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, 95737064 + ... + 96996123.

It is an arithmetic number, because the mean of its divisors is an integer number (3824790115860).

Almost surely, 2^{121331323212110} is an apocalyptic number.

121331323212110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121331323212110 is an abundant number, since it is smaller than the sum of its proper divisors (123455244202930).

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

121331323212110 is a wasteful number, since it uses less digits than its factorization.

121331323212110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192733361.

The product of its (nonzero) digits is 1296, while the sum is 26.

Adding to 121331323212110 its reverse (11212323133121), we get a palindrome (132543646345231).

The spelling of 121331323212110 in words is "one hundred twenty-one trillion, three hundred thirty-one billion, three hundred twenty-three million, two hundred twelve thousand, one hundred ten".