22022012210221 has 4 divisors (see below), whose sum is σ = 22067987184000. Its totient is φ = 21976037236444.

The previous prime is 22022012210213. The next prime is 22022012210239. The reversal of 22022012210221 is 12201221022022.

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 22022012210221 - 2³ = 22022012210213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22022012210291) 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, 22987486171 + ... + 22987487128.

It is an arithmetic number, because the mean of its divisors is an integer number (5516996796000).

Almost surely, 2^{22022012210221} is an apocalyptic number.

It is an amenable number.

22022012210221 is a deficient number, since it is larger than the sum of its proper divisors (45974973779).

22022012210221 is an equidigital number, since it uses as much as digits as its factorization.

22022012210221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45974973778.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 22022012210221 its reverse (12201221022022), we get a palindrome (34223233232243).

The spelling of 22022012210221 in words is "twenty-two trillion, twenty-two billion, twelve million, two hundred ten thousand, two hundred twenty-one".