21470118201 has 64 divisors (see below), whose sum is σ = 36924825600. Its totient is φ = 12075739200.

The previous prime is 21470118191. The next prime is 21470118203. The reversal of 21470118201 is 10281107412.

It is not a de Polignac number, because 21470118201 - 2¹⁰ = 21470117177 is a prime.

It is a super-2 number, since 2×21470118201² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (21470118203) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 12331191 + ... + 12332931.

It is an arithmetic number, because the mean of its divisors is an integer number (576950400).

Almost surely, 2^21470118201 is an apocalyptic number.

21470118201 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

21470118201 is a deficient number, since it is larger than the sum of its proper divisors (15454707399).

21470118201 is a wasteful number, since it uses less digits than its factorization.

21470118201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2747 (or 2741 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 27.

The spelling of 21470118201 in words is "twenty-one billion, four hundred seventy million, one hundred eighteen thousand, two hundred one".