21050401412 has 12 divisors (see below), whose sum is σ = 38439863616. Its totient is φ = 10067583240.

The previous prime is 21050401381. The next prime is 21050401439. The reversal of 21050401412 is 21410405012.

It is a happy number.

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, 114404264 + ... + 114404447.

It is an arithmetic number, because the mean of its divisors is an integer number (3203321968).

Almost surely, 2^21050401412 is an apocalyptic number.

It is an amenable number.

21050401412 is a deficient number, since it is larger than the sum of its proper divisors (17389462204).

21050401412 is a wasteful number, since it uses less digits than its factorization.

21050401412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228808738 (or 228808736 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

Adding to 21050401412 its reverse (21410405012), we get a palindrome (42460806424).

The spelling of 21050401412 in words is "twenty-one billion, fifty million, four hundred one thousand, four hundred twelve".