131222131210 has 16 divisors (see below), whose sum is σ = 241692856416. Its totient is φ = 51268181328.

The previous prime is 131222131207. The next prime is 131222131223. The reversal of 131222131210 is 12131222131.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152583444 + ... + 152584303.

It is an arithmetic number, because the mean of its divisors is an integer number (15105803526).

Almost surely, 2^131222131210 is an apocalyptic number.

131222131210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131222131210 is a deficient number, since it is larger than the sum of its proper divisors (110470725206).

131222131210 is a wasteful number, since it uses less digits than its factorization.

131222131210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305167797.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 131222131210 its reverse (12131222131), we get a palindrome (143353353341).

It can be divided in two parts, 1312221 and 31210, that added together give a palindrome (1343431).

The spelling of 131222131210 in words is "one hundred thirty-one billion, two hundred twenty-two million, one hundred thirty-one thousand, two hundred ten".