2220999967 has 4 divisors (see below), whose sum is σ = 2234299536. Its totient is φ = 2207700400.

The previous prime is 2220999947. The next prime is 2220999983. The reversal of 2220999967 is 7699990222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2220999967 - 2⁷ = 2220999839 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 (2220999947) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6649534 + ... + 6649867.

It is an arithmetic number, because the mean of its divisors is an integer number (558574884).

Almost surely, 2^2220999967 is an apocalyptic number.

2220999967 is a deficient number, since it is larger than the sum of its proper divisors (13299569).

2220999967 is a wasteful number, since it uses less digits than its factorization.

2220999967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13299568.

The product of its (nonzero) digits is 2204496, while the sum is 55.

The square root of 2220999967 is about 47127.4863216786. The cubic root of 2220999967 is about 1304.7165881419.

The spelling of 2220999967 in words is "two billion, two hundred twenty million, nine hundred ninety-nine thousand, nine hundred sixty-seven".