212102101201211 has 8 divisors (see below), whose sum is σ = 228418892292864. Its totient is φ = 195785487944640.

The previous prime is 212102101201157. The next prime is 212102101201247. The reversal of 212102101201211 is 112102101201212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212102101201211 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 212102101201211.

It is not an unprimeable number, because it can be changed into a prime (212102101201511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41976506 + ... + 46757151.

It is an arithmetic number, because the mean of its divisors is an integer number (28552361536608).

Almost surely, 2^{212102101201211} is an apocalyptic number.

212102101201211 is a deficient number, since it is larger than the sum of its proper divisors (16316791091653).

212102101201211 is a wasteful number, since it uses less digits than its factorization.

212102101201211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88917541.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 212102101201211 its reverse (112102101201212), we get a palindrome (324204202402423).

Subtracting from 212102101201211 its reverse (112102101201212), we obtain a palindrome (99999999999999).

The spelling of 212102101201211 in words is "two hundred twelve trillion, one hundred two billion, one hundred one million, two hundred one thousand, two hundred eleven".