1122211012 has 24 divisors (see below), whose sum is σ = 2115894872. Its totient is φ = 517708800.

The previous prime is 1122211007. The next prime is 1122211043. The reversal of 1122211012 is 2101122211.

It can be written as a sum of positive squares in 4 ways, for example, as 50041476 + 1072169536 = 7074^2 + 32744^2 .

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 1122210983 and 1122211001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 171562 + ... + 177982.

Almost surely, 2^1122211012 is an apocalyptic number.

It is an amenable number.

1122211012 is a deficient number, since it is larger than the sum of its proper divisors (993683860).

1122211012 is a wasteful number, since it uses less digits than its factorization.

1122211012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9799 (or 9797 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 1122211012 is about 33499.4180844981. The cubic root of 1122211012 is about 1039.1817441984.

Adding to 1122211012 its reverse (2101122211), we get a palindrome (3223333223).

The spelling of 1122211012 in words is "one billion, one hundred twenty-two million, two hundred eleven thousand, twelve".