21414122012 has 18 divisors (see below), whose sum is σ = 39808780872. Its totient is φ = 10077233344.

The previous prime is 21414122003. The next prime is 21414122021. The reversal of 21414122012 is 21022141412.

It is an interprime number because it is at equal distance from previous prime (21414122003) and next prime (21414122021).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9261008 + ... + 9263319.

Almost surely, 2^21414122012 is an apocalyptic number.

It is an amenable number.

21414122012 is a deficient number, since it is larger than the sum of its proper divisors (18394658860).

21414122012 is a wasteful number, since it uses less digits than its factorization.

21414122012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18524365 (or 18524346 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 21414122012 its reverse (21022141412), we get a palindrome (42436263424).

The spelling of 21414122012 in words is "twenty-one billion, four hundred fourteen million, one hundred twenty-two thousand, twelve".