212211020022021 has 16 divisors (see below), whose sum is σ = 314387027248320. Its totient is φ = 141473864434320.

The previous prime is 212211020022017. The next prime is 212211020022031. The reversal of 212211020022021 is 120220020112212.

It is a happy number.

212211020022021 is a `hidden beast` number, since 2 + 1 + 221 + 1 + 0 + 200 + 220 + 21 = 666.

It is not a de Polignac number, because 212211020022021 - 2² = 212211020022017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212211020021985 and 212211020022003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212211020022031) 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, 25974991 + ... + 33153011.

It is an arithmetic number, because the mean of its divisors is an integer number (19649189203020).

Almost surely, 2^{212211020022021} is an apocalyptic number.

It is an amenable number.

212211020022021 is a deficient number, since it is larger than the sum of its proper divisors (102176007226299).

212211020022021 is a wasteful number, since it uses less digits than its factorization.

212211020022021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8272993 (or 8272987 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 212211020022021 its reverse (120220020112212), we get a palindrome (332431040134233).

The spelling of 212211020022021 in words is "two hundred twelve trillion, two hundred eleven billion, twenty million, twenty-two thousand, twenty-one".