132111220 has 12 divisors (see below), whose sum is σ = 277433604. Its totient is φ = 52844480.

The previous prime is 132111209. The next prime is 132111223. The reversal of 132111220 is 22111231.

It can be written as a sum of positive squares in 2 ways, for example, as 74442384 + 57668836 = 8628^2 + 7594^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 132111220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132111223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3302761 + ... + 3302800.

It is an arithmetic number, because the mean of its divisors is an integer number (23119467).

Almost surely, 2^132111220 is an apocalyptic number.

132111220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

132111220 is an abundant number, since it is smaller than the sum of its proper divisors (145322384).

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

132111220 is a wasteful number, since it uses less digits than its factorization.

132111220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6605570 (or 6605568 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 132111220 is about 11493.9645031643. The cubic root of 132111220 is about 509.3072999967.

Adding to 132111220 its reverse (22111231), we get a palindrome (154222451).

The spelling of 132111220 in words is "one hundred thirty-two million, one hundred eleven thousand, two hundred twenty".