10213916591221 has 16 divisors (see below), whose sum is σ = 12363786376704. Its totient is φ = 8237072265984.

The previous prime is 10213916591213. The next prime is 10213916591233. The reversal of 10213916591221 is 12219561931201.

10213916591221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 10213916591221 - 2³ = 10213916591213 is a prime.

It is a super-2 number, since 2×10213916591221² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10213916591521) 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, 13836630 + ... + 14556103.

It is an arithmetic number, because the mean of its divisors is an integer number (772736648544).

Almost surely, 2^{10213916591221} is an apocalyptic number.

It is an amenable number.

10213916591221 is a deficient number, since it is larger than the sum of its proper divisors (2149869785483).

10213916591221 is a wasteful number, since it uses less digits than its factorization.

10213916591221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28395780.

The product of its (nonzero) digits is 58320, while the sum is 43.

The spelling of 10213916591221 in words is "ten trillion, two hundred thirteen billion, nine hundred sixteen million, five hundred ninety-one thousand, two hundred twenty-one".