121204377 has 32 divisors (see below), whose sum is σ = 208597760. Its totient is φ = 68117760.

The previous prime is 121204367. The next prime is 121204379. The reversal of 121204377 is 773402121.

It is a happy number.

It is not a de Polignac number, because 121204377 - 2⁸ = 121204121 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 121204377.

It is not an unprimeable number, because it can be changed into a prime (121204379) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6273 + ... + 16785.

It is an arithmetic number, because the mean of its divisors is an integer number (6518680).

Almost surely, 2^121204377 is an apocalyptic number.

It is an amenable number.

121204377 is a deficient number, since it is larger than the sum of its proper divisors (87393383).

121204377 is a wasteful number, since it uses less digits than its factorization.

121204377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10590 (or 10584 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 121204377 is about 11009.2859441473. The cubic root of 121204377 is about 494.8870633074.

Adding to 121204377 its reverse (773402121), we get a palindrome (894606498).

The spelling of 121204377 in words is "one hundred twenty-one million, two hundred four thousand, three hundred seventy-seven".