212102211220002 has 24 divisors (see below), whose sum is σ = 459676721288460. Its totient is φ = 70681978563840.

The previous prime is 212102211219991. The next prime is 212102211220033. The reversal of 212102211220002 is 200022112201212.

It is a happy number.

212102211220002 is a `hidden beast` number, since 21 + 210 + 2 + 211 + 220 + 0 + 0 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 186334211884041 + 25767999335961 = 13650429^2 + 5076219^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1563139399 + ... + 1563275082.

Almost surely, 2^{212102211220002} is an apocalyptic number.

212102211220002 is an abundant number, since it is smaller than the sum of its proper divisors (247574510068458).

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

212102211220002 is a wasteful number, since it uses less digits than its factorization.

212102211220002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3126418258 (or 3126418255 counting only the distinct ones).

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

Adding to 212102211220002 its reverse (200022112201212), we get a palindrome (412124323421214).

The spelling of 212102211220002 in words is "two hundred twelve trillion, one hundred two billion, two hundred eleven million, two hundred twenty thousand, two".