2102246221 has 16 divisors (see below), whose sum is σ = 2272723200. Its totient is φ = 1940315328.

The previous prime is 2102246213. The next prime is 2102246243. The reversal of 2102246221 is 1226422012.

It is a cyclic number.

It is not a de Polignac number, because 2102246221 - 2³ = 2102246213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2102246192 and 2102246201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102246281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40675 + ... + 76543.

It is an arithmetic number, because the mean of its divisors is an integer number (142045200).

Almost surely, 2^2102246221 is an apocalyptic number.

It is an amenable number.

2102246221 is a deficient number, since it is larger than the sum of its proper divisors (170476979).

2102246221 is a wasteful number, since it uses less digits than its factorization.

2102246221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35988.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 2102246221 is about 45850.2586797501. The cubic root of 2102246221 is about 1281.0355838507.

Adding to 2102246221 its reverse (1226422012), we get a palindrome (3328668233).

The spelling of 2102246221 in words is "two billion, one hundred two million, two hundred forty-six thousand, two hundred twenty-one".