212112202000221 has 12 divisors (see below), whose sum is σ = 307666234424640. Its totient is φ = 140816468829960.

The previous prime is 212112202000219. The next prime is 212112202000253. The reversal of 212112202000221 is 122000202211212.

It is a happy number.

212112202000221 is a `hidden beast` number, since 2 + 1 + 21 + 1 + 220 + 200 + 0 + 221 = 666.

It is not a de Polignac number, because 212112202000221 - 2¹ = 212112202000219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212112202000194 and 212112202000203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212112202000021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49305484135 + ... + 49305488436.

It is an arithmetic number, because the mean of its divisors is an integer number (25638852868720).

Almost surely, 2^{212112202000221} is an apocalyptic number.

It is an amenable number.

212112202000221 is a deficient number, since it is larger than the sum of its proper divisors (95554032424419).

212112202000221 is a wasteful number, since it uses less digits than its factorization.

212112202000221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98610972816 (or 98610972813 counting only the distinct ones).

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

Adding to 212112202000221 its reverse (122000202211212), we get a palindrome (334112404211433).

The spelling of 212112202000221 in words is "two hundred twelve trillion, one hundred twelve billion, two hundred two million, two hundred twenty-one", and thus it is an aban number.