222202212222021 has 4 divisors (see below), whose sum is σ = 296269616296032. Its totient is φ = 148134808148012.

The previous prime is 222202212222013. The next prime is 222202212222041. The reversal of 222202212222021 is 120222212202222.

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 222202212222021 - 2³ = 222202212222013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 222202212221982 and 222202212222000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222202212222041) 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, 37033702037001 + ... + 37033702037006.

It is an arithmetic number, because the mean of its divisors is an integer number (74067404074008).

Almost surely, 2^{222202212222021} is an apocalyptic number.

It is an amenable number.

222202212222021 is a deficient number, since it is larger than the sum of its proper divisors (74067404074011).

222202212222021 is an equidigital number, since it uses as much as digits as its factorization.

222202212222021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74067404074010.

The product of its (nonzero) digits is 2048, while the sum is 24.

Adding to 222202212222021 its reverse (120222212202222), we get a palindrome (342424424424243).

The spelling of 222202212222021 in words is "two hundred twenty-two trillion, two hundred two billion, two hundred twelve million, two hundred twenty-two thousand, twenty-one".