212201112210102 has 64 divisors (see below), whose sum is σ = 481646322662400. Its totient is φ = 69220804404960.

The previous prime is 212201112210089. The next prime is 212201112210103. The reversal of 212201112210102 is 201012211102212.

212201112210102 is a `hidden beast` number, since 21 + 220 + 1 + 112 + 210 + 102 = 666.

It is a super-2 number, since 2×212201112210102² (a number of 29 digits) contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212201112210103) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17402049 + ... + 26967267.

It is an arithmetic number, because the mean of its divisors is an integer number (7525723791600).

Almost surely, 2^{212201112210102} is an apocalyptic number.

212201112210102 is an abundant number, since it is smaller than the sum of its proper divisors (269445210452298).

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

212201112210102 is a wasteful number, since it uses less digits than its factorization.

212201112210102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9574018 (or 9574012 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 212201112210102 its reverse (201012211102212), we get a palindrome (413213323312314).

The spelling of 212201112210102 in words is "two hundred twelve trillion, two hundred one billion, one hundred twelve million, two hundred ten thousand, one hundred two".