2112100122021 has 8 divisors (see below), whose sum is σ = 2826155324544. Its totient is φ = 1403055833760.

The previous prime is 2112100122019. The next prime is 2112100122059. The reversal of 2112100122021 is 1202210012112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2112100122021 - 2¹ = 2112100122019 is a prime.

It is a super-2 number, since 2×2112100122021² (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 (2112100122421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1252727581 + ... + 1252729266.

It is an arithmetic number, because the mean of its divisors is an integer number (353269415568).

Almost surely, 2^{2112100122021} is an apocalyptic number.

It is an amenable number.

2112100122021 is a deficient number, since it is larger than the sum of its proper divisors (714055202523).

2112100122021 is a wasteful number, since it uses less digits than its factorization.

2112100122021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2505457131.

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

Adding to 2112100122021 its reverse (1202210012112), we get a palindrome (3314310134133).

The spelling of 2112100122021 in words is "two trillion, one hundred twelve billion, one hundred million, one hundred twenty-two thousand, twenty-one".