21021411714 has 16 divisors (see below), whose sum is σ = 43492576320. Its totient is φ = 6765511760.

The previous prime is 21021411707. The next prime is 21021411737. The reversal of 21021411714 is 41711412012.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60406182 + ... + 60406529.

It is an arithmetic number, because the mean of its divisors is an integer number (2718286020).

Almost surely, 2^21021411714 is an apocalyptic number.

21021411714 is an abundant number, since it is smaller than the sum of its proper divisors (22471164606).

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

21021411714 is a wasteful number, since it uses less digits than its factorization.

21021411714 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120812745.

The product of its (nonzero) digits is 448, while the sum is 24.

Adding to 21021411714 its reverse (41711412012), we get a palindrome (62732823726).

The spelling of 21021411714 in words is "twenty-one billion, twenty-one million, four hundred eleven thousand, seven hundred fourteen".