11112227890 has 16 divisors (see below), whose sum is σ = 20061369432. Its totient is φ = 4431700224.

The previous prime is 11112227831. The next prime is 11112227891. The reversal of 11112227890 is 9872221111.

It can be written as a sum of positive squares in 4 ways, for example, as 9834093889 + 1278134001 = 99167^2 + 35751^2 .

It is not an unprimeable number, because it can be changed into a prime (11112227891) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1645329 + ... + 1652068.

Almost surely, 2^11112227890 is an apocalyptic number.

11112227890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11112227890 is a deficient number, since it is larger than the sum of its proper divisors (8949141542).

11112227890 is a wasteful number, since it uses less digits than its factorization.

11112227890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3297741.

The product of its (nonzero) digits is 4032, while the sum is 34.

The spelling of 11112227890 in words is "eleven billion, one hundred twelve million, two hundred twenty-seven thousand, eight hundred ninety".