12121022310 has 32 divisors (see below), whose sum is σ = 30355257600. Its totient is φ = 3091738848.

The previous prime is 12121022299. The next prime is 12121022311. The reversal of 12121022310 is 1322012121.

It is a super-2 number, since 2×12121022310² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 12121022310.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12121022311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8782660 + ... + 8784039.

It is an arithmetic number, because the mean of its divisors is an integer number (948601800).

Almost surely, 2^12121022310 is an apocalyptic number.

12121022310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12121022310 is an abundant number, since it is smaller than the sum of its proper divisors (18234235290).

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

12121022310 is a wasteful number, since it uses less digits than its factorization.

12121022310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17566732.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 12121022310 its reverse (1322012121), we get a palindrome (13443034431).

The spelling of 12121022310 in words is "twelve billion, one hundred twenty-one million, twenty-two thousand, three hundred ten".