21214036274532 has 12 divisors (see below), whose sum is σ = 49499417973936. Its totient is φ = 7071345424840.

The previous prime is 21214036274429. The next prime is 21214036274533. The reversal of 21214036274532 is 23547263041212.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (21214036274533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 883918178094 + ... + 883918178117.

It is an arithmetic number, because the mean of its divisors is an integer number (4124951497828).

Almost surely, 2^{21214036274532} is an apocalyptic number.

It is an amenable number.

21214036274532 is an abundant number, since it is smaller than the sum of its proper divisors (28285381699404).

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

21214036274532 is a wasteful number, since it uses less digits than its factorization.

21214036274532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1767836356218 (or 1767836356216 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 42.

The spelling of 21214036274532 in words is "twenty-one trillion, two hundred fourteen billion, thirty-six million, two hundred seventy-four thousand, five hundred thirty-two".