121240204 has 6 divisors (see below), whose sum is σ = 212170364. Its totient is φ = 60620100.

The previous prime is 121240193. The next prime is 121240211. The reversal of 121240204 is 402042121.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15155022 + ... + 15155029.

Almost surely, 2^121240204 is an apocalyptic number.

It is an amenable number.

121240204 is a deficient number, since it is larger than the sum of its proper divisors (90930160).

121240204 is a wasteful number, since it uses less digits than its factorization.

121240204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30310055 (or 30310053 counting only the distinct ones).

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

The square root of 121240204 is about 11010.9129503416. The cubic root of 121240204 is about 494.9358199958.

Adding to 121240204 its reverse (402042121), we get a palindrome (523282325).

The spelling of 121240204 in words is "one hundred twenty-one million, two hundred forty thousand, two hundred four".