21014414022 has 32 divisors (see below), whose sum is σ = 48143918592. Its totient is φ = 5990246784.

The previous prime is 21014413967. The next prime is 21014414023. The reversal of 21014414022 is 22041441012.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 21014414022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21014414023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 559578 + ... + 595949.

It is an arithmetic number, because the mean of its divisors is an integer number (1504497456).

Almost surely, 2^21014414022 is an apocalyptic number.

21014414022 is an abundant number, since it is smaller than the sum of its proper divisors (27129504570).

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

21014414022 is a wasteful number, since it uses less digits than its factorization.

21014414022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1155972.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 21014414022 its reverse (22041441012), we get a palindrome (43055855034).

The spelling of 21014414022 in words is "twenty-one billion, fourteen million, four hundred fourteen thousand, twenty-two".