2078302221 has 12 divisors (see below), whose sum is σ = 3003069472. Its totient is φ = 1385037576.

The previous prime is 2078302211. The next prime is 2078302223. The reversal of 2078302221 is 1222038702.

It is a happy number.

It is not a de Polignac number, because 2078302221 - 2⁶ = 2078302157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2078302223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14011 + ... + 65976.

Almost surely, 2^2078302221 is an apocalyptic number.

It is an amenable number.

2078302221 is a deficient number, since it is larger than the sum of its proper divisors (924767251).

2078302221 is a wasteful number, since it uses less digits than its factorization.

2078302221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82880 (or 82877 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 2078302221 is about 45588.4000706320. The cubic root of 2078302221 is about 1276.1534549199.

The spelling of 2078302221 in words is "two billion, seventy-eight million, three hundred two thousand, two hundred twenty-one".