202221111222 has 64 divisors (see below), whose sum is σ = 484170946560. Its totient is φ = 62193210912.

The previous prime is 202221111167. The next prime is 202221111229. The reversal of 202221111222 is 222111122202.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 202221111195 and 202221111204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202221111229) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1484053 + ... + 1614575.

It is an arithmetic number, because the mean of its divisors is an integer number (7565171040).

Almost surely, 2^202221111222 is an apocalyptic number.

202221111222 is an abundant number, since it is smaller than the sum of its proper divisors (281949835338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

202221111222 is a wasteful number, since it uses less digits than its factorization.

202221111222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132754 (or 132748 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 202221111222 its reverse (222111122202), we get a palindrome (424332233424).

The spelling of 202221111222 in words is "two hundred two billion, two hundred twenty-one million, one hundred eleven thousand, two hundred twenty-two".