21119012 has 12 divisors (see below), whose sum is σ = 37194780. Its totient is φ = 10491936.

The previous prime is 21118997. The next prime is 21119023. The reversal of 21119012 is 21091112.

It can be written as a sum of positive squares in 2 ways, for example, as 4990756 + 16128256 = 2234^2 + 4016^2 .

It is a super-2 number, since 2×21119012² = 892025335712288, which contains 22 as substring.

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, 16187 + ... + 17442.

It is an arithmetic number, because the mean of its divisors is an integer number (3099565).

Almost surely, 2^21119012 is an apocalyptic number.

It is an amenable number.

21119012 is a deficient number, since it is larger than the sum of its proper divisors (16075768).

21119012 is a wasteful number, since it uses less digits than its factorization.

21119012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33790 (or 33788 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 17.

The square root of 21119012 is about 4595.5426230207. The cubic root of 21119012 is about 276.4126188440.

The spelling of 21119012 in words is "twenty-one million, one hundred nineteen thousand, twelve".