121053216 has 24 divisors (see below), whose sum is σ = 317764944. Its totient is φ = 40351040.

The previous prime is 121053203. The next prime is 121053239. The reversal of 121053216 is 612350121.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×121053216² = 29307762207885312, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121053192 and 121053201.

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, 630390 + ... + 630581.

It is an arithmetic number, because the mean of its divisors is an integer number (13240206).

Almost surely, 2^121053216 is an apocalyptic number.

121053216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

121053216 is an abundant number, since it is smaller than the sum of its proper divisors (196711728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121053216 is a wasteful number, since it uses less digits than its factorization.

121053216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1260984 (or 1260976 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 121053216 is about 11002.4186431893. The cubic root of 121053216 is about 494.6812436119.

The spelling of 121053216 in words is "one hundred twenty-one million, fifty-three thousand, two hundred sixteen".