1222132131 has 20 divisors (see below), whose sum is σ = 1991624184. Its totient is φ = 740685600.

The previous prime is 1222132129. The next prime is 1222132147. The reversal of 1222132131 is 1312312221.

It is not a de Polignac number, because 1222132131 - 2¹ = 1222132129 is a prime.

It is a super-2 number, since 2×1222132131² = 2987213891245202322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1222132151) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 684930 + ... + 686711.

Almost surely, 2^1222132131 is an apocalyptic number.

1222132131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1222132131 is a deficient number, since it is larger than the sum of its proper divisors (769492053).

1222132131 is a wasteful number, since it uses less digits than its factorization.

1222132131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1371664 (or 1371655 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 1222132131 is about 34959.0064361103. The cubic root of 1222132131 is about 1069.1518392906.

Adding to 1222132131 its reverse (1312312221), we get a palindrome (2534444352).

The spelling of 1222132131 in words is "one billion, two hundred twenty-two million, one hundred thirty-two thousand, one hundred thirty-one".