22220010222221 has 4 divisors (see below), whose sum is σ = 25394297396832. Its totient is φ = 19045723047612.

The previous prime is 22220010222097. The next prime is 22220010222257. The reversal of 22220010222221 is 12222201002222.

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 22220010222221 - 2¹⁴ = 22220010205837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22220010222193 and 22220010222202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22220010222271) 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, 1587143587295 + ... + 1587143587308.

It is an arithmetic number, because the mean of its divisors is an integer number (6348574349208).

Almost surely, 2^{22220010222221} is an apocalyptic number.

It is an amenable number.

22220010222221 is a deficient number, since it is larger than the sum of its proper divisors (3174287174611).

22220010222221 is an equidigital number, since it uses as much as digits as its factorization.

22220010222221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3174287174610.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 22220010222221 its reverse (12222201002222), we get a palindrome (34442211224443).

The spelling of 22220010222221 in words is "twenty-two trillion, two hundred twenty billion, ten million, two hundred twenty-two thousand, two hundred twenty-one".