2102314221 has 24 divisors (see below), whose sum is σ = 3512308800. Its totient is φ = 1186845696.

The previous prime is 2102314217. The next prime is 2102314243. The reversal of 2102314221 is 1224132012.

It is a happy number.

2102314221 is a `hidden beast` number, since 2 + 10 + 231 + 422 + 1 = 666.

It is not a de Polignac number, because 2102314221 - 2² = 2102314217 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2102314194 and 2102314203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102314121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 195796 + ... + 206253.

It is an arithmetic number, because the mean of its divisors is an integer number (146346200).

Almost surely, 2^2102314221 is an apocalyptic number.

2102314221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2102314221 is a deficient number, since it is larger than the sum of its proper divisors (1409994579).

2102314221 is a wasteful number, since it uses less digits than its factorization.

2102314221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402145 (or 402142 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 2102314221 is about 45851.0002180978. Note that the first 3 decimals coincide. The cubic root of 2102314221 is about 1281.0493959786.

Adding to 2102314221 its reverse (1224132012), we get a palindrome (3326446233).

The spelling of 2102314221 in words is "two billion, one hundred two million, three hundred fourteen thousand, two hundred twenty-one".