12121322310 has 48 divisors (see below), whose sum is σ = 31540416336. Its totient is φ = 3229790784.

The previous prime is 12121322267. The next prime is 12121322321. The reversal of 12121322310 is 1322312121.

12121322310 is a `hidden beast` number, since 12 + 1 + 21 + 322 + 310 = 666.

12121322310 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12121322310² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 62197 + ... + 167663.

It is an arithmetic number, because the mean of its divisors is an integer number (657092007).

Almost surely, 2^12121322310 is an apocalyptic number.

12121322310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12121322310 is an abundant number, since it is smaller than the sum of its proper divisors (19419094026).

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

12121322310 is a wasteful number, since it uses less digits than its factorization.

12121322310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106757 (or 106754 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 12121322310 its reverse (1322312121), we get a palindrome (13443634431).

The spelling of 12121322310 in words is "twelve billion, one hundred twenty-one million, three hundred twenty-two thousand, three hundred ten".