121402204 has 54 divisors (see below), whose sum is σ = 271703040. Its totient is φ = 47290320.

The previous prime is 121402199. The next prime is 121402213. The reversal of 121402204 is 402204121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 21157 + ... + 26275.

Almost surely, 2^121402204 is an apocalyptic number.

121402204 is a gapful number since it is divisible by the number (14) 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 121402204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135851520).

121402204 is an abundant number, since it is smaller than the sum of its proper divisors (150300836).

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

121402204 is a wasteful number, since it uses less digits than its factorization.

121402204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5159 (or 5139 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 121402204 is about 11018.2668328553. The cubic root of 121402204 is about 495.1561647191.

Adding to 121402204 its reverse (402204121), we get a palindrome (523606325).

It can be divided in two parts, 121 and 402204, that multiplied together give a palindrome (48666684).

The spelling of 121402204 in words is "one hundred twenty-one million, four hundred two thousand, two hundred four".