202112212122222 has 32 divisors (see below), whose sum is σ = 428355094608000. Its totient is φ = 63396553991328.

The previous prime is 202112212122221. The next prime is 202112212122229. The reversal of 202112212122222 is 222221212211202.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 202112212122192 and 202112212122201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202112212122221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5949359328 + ... + 5949393299.

It is an arithmetic number, because the mean of its divisors is an integer number (13386096706500).

Almost surely, 2^{202112212122222} is an apocalyptic number.

202112212122222 is an abundant number, since it is smaller than the sum of its proper divisors (226242882485778).

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

202112212122222 is a wasteful number, since it uses less digits than its factorization.

202112212122222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11898752800.

The product of its (nonzero) digits is 1024, while the sum is 24.

Adding to 202112212122222 its reverse (222221212211202), we get a palindrome (424333424333424).

The spelling of 202112212122222 in words is "two hundred two trillion, one hundred twelve billion, two hundred twelve million, one hundred twenty-two thousand, two hundred twenty-two".