22201020110221 has 4 divisors (see below), whose sum is σ = 22201033359744. Its totient is φ = 22201006860700.

The previous prime is 22201020110173. The next prime is 22201020110341. The reversal of 22201020110221 is 12201102010222.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22201020110221 - 2²⁵ = 22200986555789 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22201020110195 and 22201020110204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22201020113221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3672925 + ... + 7608706.

It is an arithmetic number, because the mean of its divisors is an integer number (5550258339936).

Almost surely, 2^{22201020110221} is an apocalyptic number.

It is an amenable number.

22201020110221 is a deficient number, since it is larger than the sum of its proper divisors (13249523).

22201020110221 is a wasteful number, since it uses less digits than its factorization.

22201020110221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13249522.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22201020110221 its reverse (12201102010222), we get a palindrome (34402122120443).

The spelling of 22201020110221 in words is "twenty-two trillion, two hundred one billion, twenty million, one hundred ten thousand, two hundred twenty-one".