212100002022 has 32 divisors (see below), whose sum is σ = 425262528000. Its totient is φ = 70523002368.

The previous prime is 212100001987. The next prime is 212100002029. The reversal of 212100002022 is 220200001212.

It is a junction number, because it is equal to n+sod(n) for n = 212100001989 and 212100002007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212100002029) 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, 12294879 + ... + 12312117.

It is an arithmetic number, because the mean of its divisors is an integer number (13289454000).

Almost surely, 2^212100002022 is an apocalyptic number.

212100002022 is an abundant number, since it is smaller than the sum of its proper divisors (213162525978).

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

212100002022 is a wasteful number, since it uses less digits than its factorization.

212100002022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22260.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 212100002022 its reverse (220200001212), we get a palindrome (432300003234).

The spelling of 212100002022 in words is "two hundred twelve billion, one hundred million, two thousand, twenty-two".