121425212 has 12 divisors (see below), whose sum is σ = 215184480. Its totient is φ = 59943936.

The previous prime is 121425209. The next prime is 121425217. The reversal of 121425212 is 212524121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121425217) 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, 191813 + ... + 192444.

It is an arithmetic number, because the mean of its divisors is an integer number (17932040).

Almost surely, 2^121425212 is an apocalyptic number.

It is an amenable number.

121425212 is a deficient number, since it is larger than the sum of its proper divisors (93759268).

121425212 is a wasteful number, since it uses less digits than its factorization.

121425212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384340 (or 384338 counting only the distinct ones).

The product of its digits is 320, while the sum is 20.

The square root of 121425212 is about 11019.3108677449. The cubic root of 121425212 is about 495.1874432106.

Adding to 121425212 its reverse (212524121), we get a palindrome (333949333).

The spelling of 121425212 in words is "one hundred twenty-one million, four hundred twenty-five thousand, two hundred twelve".