121422132 has 96 divisors (see below), whose sum is σ = 341510400. Its totient is φ = 37086336.

The previous prime is 121422127. The next prime is 121422151. The reversal of 121422132 is 231224121.

It is a happy number.

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

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 276369 + ... + 276807.

It is an arithmetic number, because the mean of its divisors is an integer number (3557400).

Almost surely, 2^121422132 is an apocalyptic number.

121422132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121422132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (170755200).

121422132 is an abundant number, since it is smaller than the sum of its proper divisors (220088268).

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

121422132 is a wasteful number, since it uses less digits than its factorization.

121422132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 662 (or 654 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 121422132 is about 11019.1711122026. The cubic root of 121422132 is about 495.1832562980.

Adding to 121422132 its reverse (231224121), we get a palindrome (352646253).

The spelling of 121422132 in words is "one hundred twenty-one million, four hundred twenty-two thousand, one hundred thirty-two".