2221247286 has 80 divisors (see below), whose sum is σ = 5165519040. Its totient is φ = 712575360.

The previous prime is 2221247267. The next prime is 2221247293. The reversal of 2221247286 is 6827421222.

It is a self number, because there is not a number n which added to its sum of digits gives 2221247286.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2024290 + ... + 2025386.

It is an arithmetic number, because the mean of its divisors is an integer number (64568988).

Almost surely, 2^2221247286 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2221247286, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2582759520).

2221247286 is an abundant number, since it is smaller than the sum of its proper divisors (2944271754).

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

2221247286 is a wasteful number, since it uses less digits than its factorization.

2221247286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1571 (or 1562 counting only the distinct ones).

The product of its digits is 43008, while the sum is 36.

The square root of 2221247286 is about 47130.1101844670. The cubic root of 2221247286 is about 1304.7650151613.

The spelling of 2221247286 in words is "two billion, two hundred twenty-one million, two hundred forty-seven thousand, two hundred eighty-six".