11112222290 has 16 divisors (see below), whose sum is σ = 21540615768. Its totient is φ = 4102974336.

The previous prime is 11112222269. The next prime is 11112222301. The reversal of 11112222290 is 9222221111.

It can be written as a sum of positive squares in 4 ways, for example, as 4794039121 + 6318183169 = 69239^2 + 79487^2 .

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, 42739187 + ... + 42739446.

Almost surely, 2^11112222290 is an apocalyptic number.

11112222290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11112222290 is a deficient number, since it is larger than the sum of its proper divisors (10428393478).

11112222290 is a wasteful number, since it uses less digits than its factorization.

11112222290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85478653.

The product of its (nonzero) digits is 288, while the sum is 23.

The spelling of 11112222290 in words is "eleven billion, one hundred twelve million, two hundred twenty-two thousand, two hundred ninety".