2211201202212 has 36 divisors (see below), whose sum is σ = 5601549869916. Its totient is φ = 735468217920.

The previous prime is 2211201202163. The next prime is 2211201202213. The reversal of 2211201202212 is 2122021021122.

It is a happy number.

2211201202212 is a `hidden beast` number, since 221 + 1 + 201 + 20 + 221 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 313402910976 + 1897798291236 = 559824^2 + 1377606^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×2211201202212² (a number of 25 digits) contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (2211201202213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66601903 + ... + 66635094.

Almost surely, 2^{2211201202212} is an apocalyptic number.

It is an amenable number.

2211201202212 is an abundant number, since it is smaller than the sum of its proper divisors (3390348667704).

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

2211201202212 is a wasteful number, since it uses less digits than its factorization.

2211201202212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133237468 (or 133237463 counting only the distinct ones).

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

Adding to 2211201202212 its reverse (2122021021122), we get a palindrome (4333222223334).

The spelling of 2211201202212 in words is "two trillion, two hundred eleven billion, two hundred one million, two hundred two thousand, two hundred twelve".