2112102220212 has 144 divisors (see below), whose sum is σ = 5963605007360. Its totient is φ = 651468248928.

The previous prime is 2112102220187. The next prime is 2112102220273. The reversal of 2112102220212 is 2120222012112.

It is a happy number.

2112102220212 is a `hidden beast` number, since 21 + 1 + 210 + 2 + 220 + 212 = 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 47 ways as a sum of consecutive naturals, for example, 535708 + ... + 2123955.

Almost surely, 2^{2112102220212} is an apocalyptic number.

It is an amenable number.

2112102220212 is an abundant number, since it is smaller than the sum of its proper divisors (3851502787148).

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

2112102220212 is a wasteful number, since it uses less digits than its factorization.

2112102220212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2659744 (or 2659730 counting only the distinct ones).

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

Adding to 2112102220212 its reverse (2120222012112), we get a palindrome (4232324232324).

The spelling of 2112102220212 in words is "two trillion, one hundred twelve billion, one hundred two million, two hundred twenty thousand, two hundred twelve".