21470017101204 has 48 divisors (see below), whose sum is σ = 57778639318400. Its totient is φ = 6078012702336.

The previous prime is 21470017101179. The next prime is 21470017101227. The reversal of 21470017101204 is 40210171007412.

It is a super-2 number, since 2×21470017101204² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

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, 1172446999 + ... + 1172465310.

Almost surely, 2^{21470017101204} is an apocalyptic number.

It is an amenable number.

21470017101204 is an abundant number, since it is smaller than the sum of its proper divisors (36308622217196).

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

21470017101204 is a wasteful number, since it uses less digits than its factorization.

21470017101204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2344912432 (or 2344912430 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 30.

Adding to 21470017101204 its reverse (40210171007412), we get a palindrome (61680188108616).

The spelling of 21470017101204 in words is "twenty-one trillion, four hundred seventy billion, seventeen million, one hundred one thousand, two hundred four".