20010100313221 has 8 divisors (see below), whose sum is σ = 20254408387200. Its totient is φ = 19766225028000.

The previous prime is 20010100313213. The next prime is 20010100313267. The reversal of 20010100313221 is 12231300101002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20010100313221 - 2³ = 20010100313213 is a prime.

It is a super-2 number, since 2×20010100313221² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20010100313195 and 20010100313204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20010100313521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108104155 + ... + 108289096.

It is an arithmetic number, because the mean of its divisors is an integer number (2531801048400).

Almost surely, 2^{20010100313221} is an apocalyptic number.

It is an amenable number.

20010100313221 is a deficient number, since it is larger than the sum of its proper divisors (244308073979).

20010100313221 is a wasteful number, since it uses less digits than its factorization.

20010100313221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216394379.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 20010100313221 its reverse (12231300101002), we get a palindrome (32241400414223).

The spelling of 20010100313221 in words is "twenty trillion, ten billion, one hundred million, three hundred thirteen thousand, two hundred twenty-one".