2102220202212 has 72 divisors (see below), whose sum is σ = 5739108447800. Its totient is φ = 644983534080.

The previous prime is 2102220202193. The next prime is 2102220202231. The reversal of 2102220202212 is 2122020222012.

2102220202212 is a `hidden beast` number, since 210 + 2 + 220 + 20 + 2 + 212 = 666.

It is an interprime number because it is at equal distance from previous prime (2102220202193) and next prime (2102220202231).

It can be written as a sum of positive squares in 4 ways, for example, as 79385316516 + 2022834885696 = 281754^2 + 1422264^2 .

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 23 ways as a sum of consecutive naturals, for example, 6272089 + ... + 6598752.

Almost surely, 2^{2102220202212} is an apocalyptic number.

It is an amenable number.

2102220202212 is an abundant number, since it is smaller than the sum of its proper divisors (3636888245588).

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

2102220202212 is a wasteful number, since it uses less digits than its factorization.

2102220202212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12871213 (or 12871208 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 2102220202212 its reverse (2122020222012), we get a palindrome (4224240424224).

The spelling of 2102220202212 in words is "two trillion, one hundred two billion, two hundred twenty million, two hundred two thousand, two hundred twelve".