11222144351550 has 144 divisors (see below), whose sum is σ = 33127713440640. Its totient is φ = 2700947592000.

The previous prime is 11222144351533. The next prime is 11222144351591. The reversal of 11222144351550 is 5515344122211.

11222144351550 is a `hidden beast` number, since 1 + 1 + 2 + 2 + 2 + 14 + 43 + 51 + 550 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 7466986 + ... + 8843085.

It is an arithmetic number, because the mean of its divisors is an integer number (230053565560).

Almost surely, 2^{11222144351550} is an apocalyptic number.

11222144351550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11222144351550 is an abundant number, since it is smaller than the sum of its proper divisors (21905569089090).

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

11222144351550 is a wasteful number, since it uses less digits than its factorization.

11222144351550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16310239 (or 16310231 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 36.

Adding to 11222144351550 its reverse (5515344122211), we get a palindrome (16737488473761).

The spelling of 11222144351550 in words is "eleven trillion, two hundred twenty-two billion, one hundred forty-four million, three hundred fifty-one thousand, five hundred fifty".