1122211690 has 16 divisors (see below), whose sum is σ = 2020597128. Its totient is φ = 448747776.

The previous prime is 1122211679. The next prime is 1122211711. The reversal of 1122211690 is 961122211.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 438023041 + 684188649 = 20929^2 + 26157^2 .

It is a super-2 number, since 2×1122211690² = 2518718154345312200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21454 + ... + 52006.

Almost surely, 2^1122211690 is an apocalyptic number.

1122211690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1122211690 is a deficient number, since it is larger than the sum of its proper divisors (898385438).

1122211690 is a wasteful number, since it uses less digits than its factorization.

1122211690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34233.

The product of its (nonzero) digits is 432, while the sum is 25.

The square root of 1122211690 is about 33499.4282040754. The cubic root of 1122211690 is about 1039.1819534773.

The spelling of 1122211690 in words is "one billion, one hundred twenty-two million, two hundred eleven thousand, six hundred ninety".