11111221190 has 32 divisors (see below), whose sum is σ = 20704723200. Its totient is φ = 4288752000.

The previous prime is 11111221139. The next prime is 11111221193. The reversal of 11111221190 is 9112211111.

It is a super-2 number, since 2×11111221190² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11111221193) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56840 + ... + 159540.

It is an arithmetic number, because the mean of its divisors is an integer number (647022600).

Almost surely, 2^11111221190 is an apocalyptic number.

11111221190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11111221190 is a deficient number, since it is larger than the sum of its proper divisors (9593502010).

11111221190 is a wasteful number, since it uses less digits than its factorization.

11111221190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103088.

The product of its (nonzero) digits is 36, while the sum is 20.

The spelling of 11111221190 in words is "eleven billion, one hundred eleven million, two hundred twenty-one thousand, one hundred ninety".