201211212201012 has 96 divisors (see below), whose sum is σ = 567348531375360. Its totient is φ = 61298160566400.

The previous prime is 201211212200963. The next prime is 201211212201179. The reversal of 201211212201012 is 210102212112102.

201211212201012 is a `hidden beast` number, since 201 + 21 + 121 + 220 + 101 + 2 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 709327648 + ... + 709611255.

It is an arithmetic number, because the mean of its divisors is an integer number (5909880535160).

Almost surely, 2^{201211212201012} is an apocalyptic number.

It is an amenable number.

201211212201012 is an abundant number, since it is smaller than the sum of its proper divisors (366137319174348).

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

201211212201012 is a wasteful number, since it uses less digits than its factorization.

201211212201012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1418939030 (or 1418939022 counting only the distinct ones).

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

Adding to 201211212201012 its reverse (210102212112102), we get a palindrome (411313424313114).

The spelling of 201211212201012 in words is "two hundred one trillion, two hundred eleven billion, two hundred twelve million, two hundred one thousand, twelve".