121104644 has 24 divisors (see below), whose sum is σ = 215936448. Its totient is φ = 59415840.

The previous prime is 121104587. The next prime is 121104691. The reversal of 121104644 is 446401121.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82622 + ... + 84074.

It is an arithmetic number, because the mean of its divisors is an integer number (8997352).

Almost surely, 2^121104644 is an apocalyptic number.

It is an amenable number.

121104644 is a deficient number, since it is larger than the sum of its proper divisors (94831804).

121104644 is a wasteful number, since it uses less digits than its factorization.

121104644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1835 (or 1833 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 121104644 is about 11004.7555175024. The cubic root of 121104644 is about 494.7512868155.

Adding to 121104644 its reverse (446401121), we get a palindrome (567505765).

The spelling of 121104644 in words is "one hundred twenty-one million, one hundred four thousand, six hundred forty-four".