122132220 has 48 divisors (see below), whose sum is σ = 390824448. Its totient is φ = 27915840.

The previous prime is 122132191. The next prime is 122132251. The reversal of 122132220 is 22231221.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 122132220.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144976 + ... + 145815.

It is an arithmetic number, because the mean of its divisors is an integer number (8142176).

Almost surely, 2^122132220 is an apocalyptic number.

122132220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122132220 is an abundant number, since it is smaller than the sum of its proper divisors (268692228).

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

122132220 is a wasteful number, since it uses less digits than its factorization.

122132220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290810 (or 290808 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 122132220 is about 11051.3447145585. The cubic root of 122132220 is about 496.1466733673.

Adding to 122132220 its reverse (22231221), we get a palindrome (144363441).

Subtracting from 122132220 its reverse (22231221), we obtain a palindrome (99900999).

The spelling of 122132220 in words is "one hundred twenty-two million, one hundred thirty-two thousand, two hundred twenty".