22210201012221 has 48 divisors (see below), whose sum is σ = 33598306652976. Its totient is φ = 14122932415488.

The previous prime is 22210201012193. The next prime is 22210201012229. The reversal of 22210201012221 is 12221010201222.

It is a happy number.

22210201012221 is a `hidden beast` number, since 22 + 210 + 201 + 0 + 12 + 221 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 5939578265625 + 16270622746596 = 2437125^2 + 4033686^2 .

It is not a de Polignac number, because 22210201012221 - 2⁹ = 22210201011709 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22210201012194 and 22210201012203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22210201012229) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 20527831 + ... + 21582683.

It is an arithmetic number, because the mean of its divisors is an integer number (699964721937).

Almost surely, 2^{22210201012221} is an apocalyptic number.

It is an amenable number.

22210201012221 is a deficient number, since it is larger than the sum of its proper divisors (11388105640755).

22210201012221 is a wasteful number, since it uses less digits than its factorization.

22210201012221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1056142 (or 1056139 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 22210201012221 its reverse (12221010201222), we get a palindrome (34431211213443).

The spelling of 22210201012221 in words is "twenty-two trillion, two hundred ten billion, two hundred one million, twelve thousand, two hundred twenty-one".