22102212221201 has 4 divisors (see below), whose sum is σ = 25259671109952. Its totient is φ = 18944753332452.

The previous prime is 22102212221051. The next prime is 22102212221207. The reversal of 22102212221201 is 10212221220122.

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 22102212221201 - 2¹⁸ = 22102211959057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22102212221207) 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, 1578729444365 + ... + 1578729444378.

It is an arithmetic number, because the mean of its divisors is an integer number (6314917777488).

Almost surely, 2^{22102212221201} is an apocalyptic number.

It is an amenable number.

22102212221201 is a deficient number, since it is larger than the sum of its proper divisors (3157458888751).

22102212221201 is an equidigital number, since it uses as much as digits as its factorization.

22102212221201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3157458888750.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 22102212221201 its reverse (10212221220122), we get a palindrome (32314433441323).

The spelling of 22102212221201 in words is "twenty-two trillion, one hundred two billion, two hundred twelve million, two hundred twenty-one thousand, two hundred one".