21022521404514 has 32 divisors (see below), whose sum is σ = 48082299632640. Its totient is φ = 6002581919952.

The previous prime is 21022521404501. The next prime is 21022521404543. The reversal of 21022521404514 is 41540412522012.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160465704 + ... + 160596659.

It is an arithmetic number, because the mean of its divisors is an integer number (1502571863520).

Almost surely, 2^{21022521404514} is an apocalyptic number.

21022521404514 is an abundant number, since it is smaller than the sum of its proper divisors (27059778228126).

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

21022521404514 is a wasteful number, since it uses less digits than its factorization.

21022521404514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321063934.

The product of its (nonzero) digits is 25600, while the sum is 33.

Adding to 21022521404514 its reverse (41540412522012), we get a palindrome (62562933926526).

The spelling of 21022521404514 in words is "twenty-one trillion, twenty-two billion, five hundred twenty-one million, four hundred four thousand, five hundred fourteen".