21214052561514 has 16 divisors (see below), whose sum is σ = 42428344940352. Its totient is φ = 7071310884288.

The previous prime is 21214052561437. The next prime is 21214052561567. The reversal of 21214052561514 is 41516525041212.

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, 8832054 + ... + 10974209.

It is an arithmetic number, because the mean of its divisors is an integer number (2651771558772).

Almost surely, 2^{21214052561514} is an apocalyptic number.

21214052561514 is an abundant number, since it is smaller than the sum of its proper divisors (21214292378838).

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

21214052561514 is a wasteful number, since it uses less digits than its factorization.

21214052561514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19984781.

The product of its (nonzero) digits is 96000, while the sum is 39.

The spelling of 21214052561514 in words is "twenty-one trillion, two hundred fourteen billion, fifty-two million, five hundred sixty-one thousand, five hundred fourteen".