121120016 has 20 divisors (see below), whose sum is σ = 235240524. Its totient is φ = 60412800.

The previous prime is 121120009. The next prime is 121120057. The reversal of 121120016 is 610021121.

It can be written as a sum of positive squares in 2 ways, for example, as 60217600 + 60902416 = 7760^2 + 7804^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2255 + ... + 15726.

Almost surely, 2^121120016 is an apocalyptic number.

121120016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

121120016 is a deficient number, since it is larger than the sum of its proper divisors (114120508).

121120016 is a wasteful number, since it uses less digits than its factorization.

121120016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18410 (or 18404 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 121120016 is about 11005.4539206704. The cubic root of 121120016 is about 494.7722191122.

Adding to 121120016 its reverse (610021121), we get a palindrome (731141137).

The spelling of 121120016 in words is "one hundred twenty-one million, one hundred twenty thousand, sixteen".