11021120190 has 24 divisors (see below), whose sum is σ = 28654912728. Its totient is φ = 2938965360.

The previous prime is 11021120153. The next prime is 11021120191. The reversal of 11021120190 is 9102112011.

It is a happy number.

It is a super-2 number, since 2×11021120190² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11021120191) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61228356 + ... + 61228535.

It is an arithmetic number, because the mean of its divisors is an integer number (1193954697).

Almost surely, 2^11021120190 is an apocalyptic number.

11021120190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11021120190 is an abundant number, since it is smaller than the sum of its proper divisors (17633792538).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11021120190 is a wasteful number, since it uses less digits than its factorization.

11021120190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122456904 (or 122456901 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 18.

The spelling of 11021120190 in words is "eleven billion, twenty-one million, one hundred twenty thousand, one hundred ninety".