212011220212101 has 32 divisors (see below), whose sum is σ = 317784126960000. Its totient is φ = 139680413034624.

The previous prime is 212011220212063. The next prime is 212011220212153. The reversal of 212011220212101 is 101212022110212.

212011220212101 is a `hidden beast` number, since 2 + 120 + 11 + 220 + 212 + 101 = 666.

It is not a de Polignac number, because 212011220212101 - 2³⁵ = 211976860473733 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212011220212501) 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, 18176451 + ... + 27466448.

It is an arithmetic number, because the mean of its divisors is an integer number (9930753967500).

Almost surely, 2^{212011220212101} is an apocalyptic number.

It is an amenable number.

212011220212101 is a deficient number, since it is larger than the sum of its proper divisors (105772906747899).

212011220212101 is a wasteful number, since it uses less digits than its factorization.

212011220212101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45644930 (or 45644924 counting only the distinct ones).

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

Adding to 212011220212101 its reverse (101212022110212), we get a palindrome (313223242322313).

The spelling of 212011220212101 in words is "two hundred twelve trillion, eleven billion, two hundred twenty million, two hundred twelve thousand, one hundred one".