2021120120212 has 48 divisors (see below), whose sum is σ = 3765970853568. Its totient is φ = 945798658560.

The previous prime is 2021120120207. The next prime is 2021120120237. The reversal of 2021120120212 is 2120210211202.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26579887 + ... + 26655817.

It is an arithmetic number, because the mean of its divisors is an integer number (78457726116).

Almost surely, 2^{2021120120212} is an apocalyptic number.

It is an amenable number.

2021120120212 is a deficient number, since it is larger than the sum of its proper divisors (1744850733356).

2021120120212 is a wasteful number, since it uses less digits than its factorization.

2021120120212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78136 (or 78134 counting only the distinct ones).

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

Adding to 2021120120212 its reverse (2120210211202), we get a palindrome (4141330331414).

The spelling of 2021120120212 in words is "two trillion, twenty-one billion, one hundred twenty million, one hundred twenty thousand, two hundred twelve".