20202112221222 has 16 divisors (see below), whose sum is σ = 41496230508912. Its totient is φ = 6552036396000.

The previous prime is 20202112221107. The next prime is 20202112221223. The reversal of 20202112221222 is 22212221120202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20202112221223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45500252529 + ... + 45500252972.

It is an arithmetic number, because the mean of its divisors is an integer number (2593514406807).

Almost surely, 2^{20202112221222} is an apocalyptic number.

20202112221222 is an abundant number, since it is smaller than the sum of its proper divisors (21294118287690).

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

20202112221222 is a wasteful number, since it uses less digits than its factorization.

20202112221222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91000505543.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 20202112221222 its reverse (22212221120202), we get a palindrome (42414333341424).

The spelling of 20202112221222 in words is "twenty trillion, two hundred two billion, one hundred twelve million, two hundred twenty-one thousand, two hundred twenty-two".