12221322131210 has 32 divisors (see below), whose sum is σ = 23156760565440. Its totient is φ = 4631123607552.

The previous prime is 12221322131203. The next prime is 12221322131237. The reversal of 12221322131210 is 1213122312221.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7136522 + ... + 8681738.

It is an arithmetic number, because the mean of its divisors is an integer number (723648767670).

Almost surely, 2^{12221322131210} is an apocalyptic number.

12221322131210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12221322131210 is a deficient number, since it is larger than the sum of its proper divisors (10935438434230).

12221322131210 is a wasteful number, since it uses less digits than its factorization.

12221322131210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1586870.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 12221322131210 its reverse (1213122312221), we get a palindrome (13434444443431).

The spelling of 12221322131210 in words is "twelve trillion, two hundred twenty-one billion, three hundred twenty-two million, one hundred thirty-one thousand, two hundred ten".