121120772 has 6 divisors (see below), whose sum is σ = 211961358. Its totient is φ = 60560384.

The previous prime is 121120717. The next prime is 121120777. The reversal of 121120772 is 277021121.

It can be written as a sum of positive squares in only one way, i.e., 107827456 + 13293316 = 10384^2 + 3646^2 .

It is not an unprimeable number, because it can be changed into a prime (121120777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15140093 + ... + 15140100.

It is an arithmetic number, because the mean of its divisors is an integer number (35326893).

Almost surely, 2^121120772 is an apocalyptic number.

It is an amenable number.

121120772 is a deficient number, since it is larger than the sum of its proper divisors (90840586).

121120772 is a wasteful number, since it uses less digits than its factorization.

121120772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30280197 (or 30280195 counting only the distinct ones).

The product of its (nonzero) digits is 392, while the sum is 23.

The square root of 121120772 is about 11005.4882672238. The cubic root of 121120772 is about 494.7732485237.

Adding to 121120772 its reverse (277021121), we get a palindrome (398141893).

The spelling of 121120772 in words is "one hundred twenty-one million, one hundred twenty thousand, seven hundred seventy-two".