2021120112212 has 24 divisors (see below), whose sum is σ = 3724349647200. Its totient is φ = 957055460256.

The previous prime is 2021120112211. The next prime is 2021120112257. The reversal of 2021120112212 is 2122110211202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021120112211) 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, 4174943 + ... + 4633830.

It is an arithmetic number, because the mean of its divisors is an integer number (155181235300).

Almost surely, 2^{2021120112212} is an apocalyptic number.

It is an amenable number.

2021120112212 is a deficient number, since it is larger than the sum of its proper divisors (1703229534988).

2021120112212 is a wasteful number, since it uses less digits than its factorization.

2021120112212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8811815 (or 8811813 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 2021120112212 its reverse (2122110211202), we get a palindrome (4143230323414).

The spelling of 2021120112212 in words is "two trillion, twenty-one billion, one hundred twenty million, one hundred twelve thousand, two hundred twelve".