2021120222212 has 96 divisors (see below), whose sum is σ = 4620258074880. Its totient is φ = 750733885440.

The previous prime is 2021120222207. The next prime is 2021120222221. The reversal of 2021120222212 is 2122220211202.

It is a self number, because there is not a number n which added to its sum of digits gives 2021120222212.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2203012 + ... + 2982532.

It is an arithmetic number, because the mean of its divisors is an integer number (48127688280).

Almost surely, 2^{2021120222212} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2021120222212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2310129037440).

2021120222212 is an abundant number, since it is smaller than the sum of its proper divisors (2599137852668).

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

2021120222212 is a wasteful number, since it uses less digits than its factorization.

2021120222212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 779981 (or 779979 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 2021120222212 its reverse (2122220211202), we get a palindrome (4143340433414).

The spelling of 2021120222212 in words is "two trillion, twenty-one billion, one hundred twenty million, two hundred twenty-two thousand, two hundred twelve".