22102001010221 has 16 divisors (see below), whose sum is σ = 24624595427328. Its totient is φ = 19664971158000.

The previous prime is 22102001010139. The next prime is 22102001010247. The reversal of 22102001010221 is 12201010020122.

It is a cyclic number.

It is not a de Polignac number, because 22102001010221 - 2²⁶ = 22101933901357 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22102001010196 and 22102001010205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22102001013221) 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, 48449036 + ... + 48903098.

It is an arithmetic number, because the mean of its divisors is an integer number (1539037214208).

Almost surely, 2^{22102001010221} is an apocalyptic number.

It is an amenable number.

22102001010221 is a deficient number, since it is larger than the sum of its proper divisors (2522594417107).

22102001010221 is a wasteful number, since it uses less digits than its factorization.

22102001010221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 548272.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 22102001010221 its reverse (12201010020122), we get a palindrome (34303011030343).

Subtracting from 22102001010221 its reverse (12201010020122), we obtain a palindrome (9900990990099).

The spelling of 22102001010221 in words is "twenty-two trillion, one hundred two billion, one million, ten thousand, two hundred twenty-one".