2021112001212 has 24 divisors (see below), whose sum is σ = 4726157794512. Its totient is φ = 672242601600.

The previous prime is 2021112001177. The next prime is 2021112001217. The reversal of 2021112001212 is 2121002111202.

It is a junction number, because it is equal to n+sod(n) for n = 2021112001191 and 2021112001200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021112001217) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 182669089 + ... + 182680152.

It is an arithmetic number, because the mean of its divisors is an integer number (196923241438).

Almost surely, 2^{2021112001212} is an apocalyptic number.

It is an amenable number.

2021112001212 is an abundant number, since it is smaller than the sum of its proper divisors (2705045793300).

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

2021112001212 is a wasteful number, since it uses less digits than its factorization.

2021112001212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365349709 (or 365349707 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2021112001212 its reverse (2121002111202), we get a palindrome (4142114112414).

The spelling of 2021112001212 in words is "two trillion, twenty-one billion, one hundred twelve million, one thousand, two hundred twelve".