21052231014 has 8 divisors (see below), whose sum is σ = 42104462040. Its totient is φ = 7017410336.

The previous prime is 21052231003. The next prime is 21052231043. The reversal of 21052231014 is 41013225012.

It is a sphenic number, since it is the product of 3 distinct primes.

21052231014 is an admirable number.

It is a congruent 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, 1754352579 + ... + 1754352590.

It is an arithmetic number, because the mean of its divisors is an integer number (5263057755).

Almost surely, 2^21052231014 is an apocalyptic number.

21052231014 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

21052231014 is a wasteful number, since it uses less digits than its factorization.

21052231014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3508705174.

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 21052231014 its reverse (41013225012), we get a palindrome (62065456026).

The spelling of 21052231014 in words is "twenty-one billion, fifty-two million, two hundred thirty-one thousand, fourteen".