1220131012 has 12 divisors (see below), whose sum is σ = 2135533456. Its totient is φ = 609978600.

The previous prime is 1220131001. The next prime is 1220131027. The reversal of 1220131012 is 2101310221.

It is a junction number, because it is equal to n+sod(n) for n = 1220130983 and 1220131001.

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, 17887 + ... + 52537.

Almost surely, 2^1220131012 is an apocalyptic number.

It is an amenable number.

1220131012 is a deficient number, since it is larger than the sum of its proper divisors (915402444).

1220131012 is a wasteful number, since it uses less digits than its factorization.

1220131012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43458 (or 43456 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1220131012 is about 34930.3737741239. The cubic root of 1220131012 is about 1068.5679774730.

Adding to 1220131012 its reverse (2101310221), we get a palindrome (3321441233).

The spelling of 1220131012 in words is "one billion, two hundred twenty million, one hundred thirty-one thousand, twelve".