201212211020202 has 24 divisors (see below), whose sum is σ = 435960080846784. Its totient is φ = 67070692344744.

The previous prime is 201212211020189. The next prime is 201212211020221. The reversal of 201212211020202 is 202020112212102.

It is a happy number.

201212211020202 is a `hidden beast` number, since 20 + 1 + 212 + 211 + 0 + 20 + 202 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34882543 + ... + 40239485.

It is an arithmetic number, because the mean of its divisors is an integer number (18165003368616).

Almost surely, 2^{201212211020202} is an apocalyptic number.

201212211020202 is an abundant number, since it is smaller than the sum of its proper divisors (234747869826582).

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

201212211020202 is a wasteful number, since it uses less digits than its factorization.

201212211020202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7443674 (or 7443671 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 201212211020202 its reverse (202020112212102), we get a palindrome (403232323232304).

The spelling of 201212211020202 in words is "two hundred one trillion, two hundred twelve billion, two hundred eleven million, twenty thousand, two hundred two".