2220666602251 has 8 divisors (see below), whose sum is σ = 2317549328640. Its totient is φ = 2123811542952.

The previous prime is 2220666602243. The next prime is 2220666602261. The reversal of 2220666602251 is 1522066660222.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2220666602251 - 2³ = 2220666602243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2220666602221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6752661 + ... + 7073878.

It is an arithmetic number, because the mean of its divisors is an integer number (289693666080).

Almost surely, 2^{2220666602251} is an apocalyptic number.

2220666602251 is a deficient number, since it is larger than the sum of its proper divisors (96882726389).

2220666602251 is a wasteful number, since it uses less digits than its factorization.

2220666602251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13833545.

The product of its (nonzero) digits is 207360, while the sum is 40.

The spelling of 2220666602251 in words is "two trillion, two hundred twenty billion, six hundred sixty-six million, six hundred two thousand, two hundred fifty-one".