121425102 has 32 divisors (see below), whose sum is σ = 270259200. Its totient is φ = 40411224.

The previous prime is 121425053. The next prime is 121425107. The reversal of 121425102 is 201524121.

121425102 is a `hidden beast` number, since 12 + 142 + 510 + 2 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121425107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43299 + ... + 46017.

It is an arithmetic number, because the mean of its divisors is an integer number (8445600).

Almost surely, 2^121425102 is an apocalyptic number.

121425102 is an abundant number, since it is smaller than the sum of its proper divisors (148834098).

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

121425102 is a wasteful number, since it uses less digits than its factorization.

121425102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3557 (or 3551 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 121425102 is about 11019.3058765060. The cubic root of 121425102 is about 495.1872936792.

Adding to 121425102 its reverse (201524121), we get a palindrome (322949223).

The spelling of 121425102 in words is "one hundred twenty-one million, four hundred twenty-five thousand, one hundred two".