212201022101202 has 24 divisors (see below), whose sum is σ = 468443765772684. Its totient is φ = 69399076410144.

The previous prime is 212201022101153. The next prime is 212201022101207. The reversal of 212201022101202 is 202101220102212.

It is a happy number.

212201022101202 is a `hidden beast` number, since 21 + 220 + 1 + 0 + 221 + 0 + 1 + 202 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 167488142441841 + 44712879659361 = 12941721^2 + 6686769^2 .

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

It is not an unprimeable number, because it can be changed into a prime (212201022101207) 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, 111216467653 + ... + 111216469560.

Almost surely, 2^{212201022101202} is an apocalyptic number.

212201022101202 is an abundant number, since it is smaller than the sum of its proper divisors (256242743671482).

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

212201022101202 is a wasteful number, since it uses less digits than its factorization.

212201022101202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222432937274 (or 222432937271 counting only the distinct ones).

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

Adding to 212201022101202 its reverse (202101220102212), we get a palindrome (414302242203414).

The spelling of 212201022101202 in words is "two hundred twelve trillion, two hundred one billion, twenty-two million, one hundred one thousand, two hundred two".