2221999999999 has 16 divisors (see below), whose sum is σ = 2519162339680. Its totient is φ = 1942897207680.

The previous prime is 2221999999963. The next prime is 2222000000021. The reversal of 2221999999999 is 9999999991222.

It is a de Polignac number, because none of the positive numbers 2^k-2221999999999 is a prime.

It is a Duffinian number.

2221999999999 is a modest number, since divided by 9999999 gives 222199 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221999999399) 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, 1595329 + ... + 2643685.

It is an arithmetic number, because the mean of its divisors is an integer number (157447646230).

Almost surely, 2^{2221999999999} is an apocalyptic number.

2221999999999 is a deficient number, since it is larger than the sum of its proper divisors (297162339681).

2221999999999 is a wasteful number, since it uses less digits than its factorization.

2221999999999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1056970.

The product of its digits is 3099363912, while the sum is 88.

The spelling of 2221999999999 in words is "two trillion, two hundred twenty-one billion, nine hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred ninety-nine".