2021200212222 has 24 divisors (see below), whose sum is σ = 4609754870760. Its totient is φ = 638273751120.

The previous prime is 2021200212149. The next prime is 2021200212253. The reversal of 2021200212222 is 2222120021202.

2021200212222 is a `hidden beast` number, since 20 + 212 + 0 + 0 + 212 + 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 = 2021200212195 and 2021200212204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2954970729 + ... + 2954971412.

It is an arithmetic number, because the mean of its divisors is an integer number (192073119615).

Almost surely, 2^{2021200212222} is an apocalyptic number.

2021200212222 is an abundant number, since it is smaller than the sum of its proper divisors (2588554658538).

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

2021200212222 is a wasteful number, since it uses less digits than its factorization.

2021200212222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5909942168 (or 5909942165 counting only the distinct ones).

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

Adding to 2021200212222 its reverse (2222120021202), we get a palindrome (4243320233424).

The spelling of 2021200212222 in words is "two trillion, twenty-one billion, two hundred million, two hundred twelve thousand, two hundred twenty-two".