20202120102222 has 48 divisors (see below), whose sum is σ = 44984258982000. Its totient is φ = 6547667688576.

The previous prime is 20202120102191. The next prime is 20202120102223. The reversal of 20202120102222 is 22220102120202.

20202120102222 is a `hidden beast` number, since 20 + 202 + 120 + 102 + 222 = 666.

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 = 20202120102195 and 20202120102204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20202120102223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9119583 + ... + 11116250.

It is an arithmetic number, because the mean of its divisors is an integer number (937172062125).

Almost surely, 2^{20202120102222} is an apocalyptic number.

20202120102222 is an abundant number, since it is smaller than the sum of its proper divisors (24782138879778).

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

20202120102222 is a wasteful number, since it uses less digits than its factorization.

20202120102222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20237377 (or 20237374 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 20202120102222 its reverse (22220102120202), we get a palindrome (42422222222424).

The spelling of 20202120102222 in words is "twenty trillion, two hundred two billion, one hundred twenty million, one hundred two thousand, two hundred twenty-two".