121312322230 has 64 divisors (see below), whose sum is σ = 239817112128. Its totient is φ = 43817320960.

The previous prime is 121312322179. The next prime is 121312322249. The reversal of 121312322230 is 32223213121.

It is a Harshad number since it is a multiple of its sum of digits (22).

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, 14146224 + ... + 14154796.

It is an arithmetic number, because the mean of its divisors is an integer number (3747142377).

Almost surely, 2^121312322230 is an apocalyptic number.

121312322230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121312322230 is a deficient number, since it is larger than the sum of its proper divisors (118504789898).

121312322230 is a wasteful number, since it uses less digits than its factorization.

121312322230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9441.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 121312322230 its reverse (32223213121), we get a palindrome (153535535351).

The spelling of 121312322230 in words is "one hundred twenty-one billion, three hundred twelve million, three hundred twenty-two thousand, two hundred thirty".