201212102211 has 4 divisors (see below), whose sum is σ = 268282802952. Its totient is φ = 134141401472.

The previous prime is 201212102207. The next prime is 201212102239. The reversal of 201212102211 is 112201212102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 201212102211 - 2² = 201212102207 is a prime.

It is a super-2 number, since 2×201212102211² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (201212102251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33535350366 + ... + 33535350371.

It is an arithmetic number, because the mean of its divisors is an integer number (67070700738).

Almost surely, 2^201212102211 is an apocalyptic number.

201212102211 is a deficient number, since it is larger than the sum of its proper divisors (67070700741).

201212102211 is an equidigital number, since it uses as much as digits as its factorization.

201212102211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67070700740.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 201212102211 its reverse (112201212102), we get a palindrome (313413314313).

The spelling of 201212102211 in words is "two hundred one billion, two hundred twelve million, one hundred two thousand, two hundred eleven".