2112200112021 has 16 divisors (see below), whose sum is σ = 2987097600384. Its totient is φ = 1323005128704.

The previous prime is 2112200112013. The next prime is 2112200112037. The reversal of 2112200112021 is 1202110022112.

It is not a de Polignac number, because 2112200112021 - 2³ = 2112200112013 is a prime.

It is a super-2 number, since 2×2112200112021² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112200112091) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35859385 + ... + 35918238.

It is an arithmetic number, because the mean of its divisors is an integer number (186693600024).

Almost surely, 2^{2112200112021} is an apocalyptic number.

It is an amenable number.

2112200112021 is a deficient number, since it is larger than the sum of its proper divisors (874897488363).

2112200112021 is a wasteful number, since it uses less digits than its factorization.

2112200112021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71778220.

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

Adding to 2112200112021 its reverse (1202110022112), we get a palindrome (3314310134133).

The spelling of 2112200112021 in words is "two trillion, one hundred twelve billion, two hundred million, one hundred twelve thousand, twenty-one".