2221306494 has 32 divisors (see below), whose sum is σ = 4848405120. Its totient is φ = 672856800.

The previous prime is 2221306481. The next prime is 2221306537. The reversal of 2221306494 is 4946031222.

2221306494 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 218709 + ... + 228639.

It is an arithmetic number, because the mean of its divisors is an integer number (151512660).

Almost surely, 2^2221306494 is an apocalyptic number.

2221306494 is an abundant number, since it is smaller than the sum of its proper divisors (2627098626).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2221306494 is a wasteful number, since it uses less digits than its factorization.

2221306494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13336.

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 2221306494 is about 47130.7383137587. The cubic root of 2221306494 is about 1304.7766080234.

The spelling of 2221306494 in words is "two billion, two hundred twenty-one million, three hundred six thousand, four hundred ninety-four".