12212242131 has 16 divisors (see below), whose sum is σ = 16380160160. Its totient is φ = 8092949760.

The previous prime is 12212242093. The next prime is 12212242177. The reversal of 12212242131 is 13124221221.

It is a happy number.

It is not a de Polignac number, because 12212242131 - 2¹⁵ = 12212209363 is a prime.

It is a super-2 number, since 2×12212242131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12212242098 and 12212242107.

It is not an unprimeable number, because it can be changed into a prime (12212642131) 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, 1913061 + ... + 1919433.

It is an arithmetic number, because the mean of its divisors is an integer number (1023760010).

Almost surely, 2^12212242131 is an apocalyptic number.

12212242131 is a deficient number, since it is larger than the sum of its proper divisors (4167918029).

12212242131 is a wasteful number, since it uses less digits than its factorization.

12212242131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10086.

The product of its digits is 384, while the sum is 21.

Adding to 12212242131 its reverse (13124221221), we get a palindrome (25336463352).

The spelling of 12212242131 in words is "twelve billion, two hundred twelve million, two hundred forty-two thousand, one hundred thirty-one".