212101210220202 has 64 divisors (see below), whose sum is σ = 471737653920000. Its totient is φ = 70640177877504.

The previous prime is 212101210220197. The next prime is 212101210220231. The reversal of 212101210220202 is 202022012101212.

It is a happy number.

212101210220202 is a `hidden beast` number, since 2 + 1 + 210 + 1 + 210 + 220 + 20 + 2 = 666.

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 31 ways as a sum of consecutive naturals, for example, 403240674 + ... + 403766322.

It is an arithmetic number, because the mean of its divisors is an integer number (7370900842500).

Almost surely, 2^{212101210220202} is an apocalyptic number.

212101210220202 is an abundant number, since it is smaller than the sum of its proper divisors (259636443699798).

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

212101210220202 is a wasteful number, since it uses less digits than its factorization.

212101210220202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532012 (or 532006 counting only the distinct ones).

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

Adding to 212101210220202 its reverse (202022012101212), we get a palindrome (414123222321414).

The spelling of 212101210220202 in words is "two hundred twelve trillion, one hundred one billion, two hundred ten million, two hundred twenty thousand, two hundred two".