2112025221 has 24 divisors (see below), whose sum is σ = 3099148416. Its totient is φ = 1385786880.

The previous prime is 2112025189. The next prime is 2112025247. The reversal of 2112025221 is 1225202112.

2112025221 is a `hidden beast` number, since 21 + 120 + 2 + 522 + 1 = 666.

It is not a de Polignac number, because 2112025221 - 2⁵ = 2112025189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2112025194 and 2112025203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112025261) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 197221 + ... + 207653.

It is an arithmetic number, because the mean of its divisors is an integer number (129131184).

Almost surely, 2^2112025221 is an apocalyptic number.

It is an amenable number.

2112025221 is a deficient number, since it is larger than the sum of its proper divisors (987123195).

2112025221 is a wasteful number, since it uses less digits than its factorization.

2112025221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10793 (or 10790 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 2112025221 is about 45956.7755722701. The cubic root of 2112025221 is about 1283.0188391259.

Adding to 2112025221 its reverse (1225202112), we get a palindrome (3337227333).

The spelling of 2112025221 in words is "two billion, one hundred twelve million, twenty-five thousand, two hundred twenty-one".