131122011212 has 12 divisors (see below), whose sum is σ = 229468544760. Its totient is φ = 65559569856.

The previous prime is 131122011197. The next prime is 131122011233. The reversal of 131122011212 is 212110221131.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138398 + ... + 530469.

It is an arithmetic number, because the mean of its divisors is an integer number (19122378730).

Almost surely, 2^131122011212 is an apocalyptic number.

It is an amenable number.

131122011212 is a deficient number, since it is larger than the sum of its proper divisors (98346533548).

131122011212 is a wasteful number, since it uses less digits than its factorization.

131122011212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 717880 (or 717878 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 131122011212 its reverse (212110221131), we get a palindrome (343232232343).

The spelling of 131122011212 in words is "one hundred thirty-one billion, one hundred twenty-two million, eleven thousand, two hundred twelve".