121773772 has 24 divisors (see below), whose sum is σ = 220267152. Its totient is φ = 58867200.

The previous prime is 121773767. The next prime is 121773787. The reversal of 121773772 is 277377121.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15247 + ... + 21817.

It is an arithmetic number, because the mean of its divisors is an integer number (9177798).

Almost surely, 2^121773772 is an apocalyptic number.

It is an amenable number.

121773772 is a deficient number, since it is larger than the sum of its proper divisors (98493380).

121773772 is a wasteful number, since it uses less digits than its factorization.

121773772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6729 (or 6727 counting only the distinct ones).

The product of its digits is 28812, while the sum is 37.

The square root of 121773772 is about 11035.1154049244. The cubic root of 121773772 is about 495.6608145397.

The spelling of 121773772 in words is "one hundred twenty-one million, seven hundred seventy-three thousand, seven hundred seventy-two".