22210122200221 has 4 divisors (see below), whose sum is σ = 22233575339712. Its totient is φ = 22186669060732.

The previous prime is 22210122200207. The next prime is 22210122200251. The reversal of 22210122200221 is 12200222101222.

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 a de Polignac number, because none of the positive numbers 2^k-22210122200221 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 (22210122200251) 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, 11726568325 + ... + 11726570218.

It is an arithmetic number, because the mean of its divisors is an integer number (5558393834928).

Almost surely, 2^{22210122200221} is an apocalyptic number.

It is an amenable number.

22210122200221 is a deficient number, since it is larger than the sum of its proper divisors (23453139491).

22210122200221 is an equidigital number, since it uses as much as digits as its factorization.

22210122200221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23453139490.

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

Adding to 22210122200221 its reverse (12200222101222), we get a palindrome (34410344301443).

The spelling of 22210122200221 in words is "twenty-two trillion, two hundred ten billion, one hundred twenty-two million, two hundred thousand, two hundred twenty-one".