2100021220112 has 10 divisors (see below), whose sum is σ = 4068791113998. Its totient is φ = 1050010610048.

The previous prime is 2100021220109. The next prime is 2100021220133. The reversal of 2100021220112 is 2110221200012.

It can be written as a sum of positive squares in only one way, i.e., 1762139431936 + 337881788176 = 1327456^2 + 581276^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65625663113 + ... + 65625663144.

Almost surely, 2^{2100021220112} is an apocalyptic number.

It is an amenable number.

2100021220112 is a deficient number, since it is larger than the sum of its proper divisors (1968769893886).

2100021220112 is a wasteful number, since it uses less digits than its factorization.

2100021220112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131251326265 (or 131251326259 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2100021220112 its reverse (2110221200012), we get a palindrome (4210242420124).

The spelling of 2100021220112 in words is "two trillion, one hundred billion, twenty-one million, two hundred twenty thousand, one hundred twelve".