2021112122012 has 12 divisors (see below), whose sum is σ = 3554900256600. Its totient is φ = 1005426334416.

The previous prime is 2021112122011. The next prime is 2021112122053. The reversal of 2021112122012 is 2102212111202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021112122011) 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, 1282430762 + ... + 1282432337.

It is an arithmetic number, because the mean of its divisors is an integer number (296241688050).

Almost surely, 2^{2021112122012} is an apocalyptic number.

It is an amenable number.

2021112122012 is a deficient number, since it is larger than the sum of its proper divisors (1533788134588).

2021112122012 is a wasteful number, since it uses less digits than its factorization.

2021112122012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2564863300 (or 2564863298 counting only the distinct ones).

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

Adding to 2021112122012 its reverse (2102212111202), we get a palindrome (4123324233214).

The spelling of 2021112122012 in words is "two trillion, twenty-one billion, one hundred twelve million, one hundred twenty-two thousand, twelve".