2120202022212 has 72 divisors (see below), whose sum is σ = 5384496453336. Its totient is φ = 703428870144.

The previous prime is 2120202022207. The next prime is 2120202022229. The reversal of 2120202022212 is 2122202020212.

It can be written as a sum of positive squares in 4 ways, for example, as 1697642220096 + 422559802116 = 1302936^2 + 650046^2 .

It is a super-2 number, since 2×2120202022212² (a number of 25 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11725078 + ... + 11904530.

It is an arithmetic number, because the mean of its divisors is an integer number (74784672963).

Almost surely, 2^{2120202022212} is an apocalyptic number.

It is an amenable number.

2120202022212 is an abundant number, since it is smaller than the sum of its proper divisors (3264294431124).

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

2120202022212 is a wasteful number, since it uses less digits than its factorization.

2120202022212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180997 (or 180992 counting only the distinct ones).

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

Adding to 2120202022212 its reverse (2122202020212), we get a palindrome (4242404042424).

The spelling of 2120202022212 in words is "two trillion, one hundred twenty billion, two hundred two million, twenty-two thousand, two hundred twelve".