111220201332 has 48 divisors (see below), whose sum is σ = 288634729600. Its totient is φ = 37036621440.

The previous prime is 111220201307. The next prime is 111220201343. The reversal of 111220201332 is 233102022111.

111220201332 is a `hidden beast` number, since 1 + 112 + 20 + 201 + 332 = 666.

It is a super-2 number, since 2×111220201332² (a number of 23 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 an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 401344 + ... + 619287.

Almost surely, 2^111220201332 is an apocalyptic number.

111220201332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111220201332 is an abundant number, since it is smaller than the sum of its proper divisors (177414528268).

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

111220201332 is a wasteful number, since it uses less digits than its factorization.

111220201332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1021653 (or 1021645 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 111220201332 its reverse (233102022111), we get a palindrome (344322223443).

The spelling of 111220201332 in words is "one hundred eleven billion, two hundred twenty million, two hundred one thousand, three hundred thirty-two".