2021022011212 has 12 divisors (see below), whose sum is σ = 3543819911856. Its totient is φ = 1008502036400.

The previous prime is 2021022011149. The next prime is 2021022011213. The reversal of 2021022011212 is 2121102201202.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2021022011213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 502240039 + ... + 502244062.

It is an arithmetic number, because the mean of its divisors is an integer number (295318325988).

Almost surely, 2^{2021022011212} is an apocalyptic number.

It is an amenable number.

2021022011212 is a deficient number, since it is larger than the sum of its proper divisors (1522797900644).

2021022011212 is a wasteful number, since it uses less digits than its factorization.

2021022011212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1004484608 (or 1004484606 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2021022011212 its reverse (2121102201202), we get a palindrome (4142124212414).

The spelling of 2021022011212 in words is "two trillion, twenty-one billion, twenty-two million, eleven thousand, two hundred twelve".