2220947999 has 2 divisors, whose sum is σ = 2220948000. Its totient is φ = 2220947998.

The previous prime is 2220947969. The next prime is 2220948007. The reversal of 2220947999 is 9997490222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2220947999 - 2¹⁶ = 2220882463 is a prime.

It is a super-2 number, since 2×2220947999² = 9865220028524208002, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2220947999.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2220947969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110473999 + 1110474000.

It is an arithmetic number, because the mean of its divisors is an integer number (1110474000).

Almost surely, 2^2220947999 is an apocalyptic number.

2220947999 is a deficient number, since it is larger than the sum of its proper divisors (1).

2220947999 is an equidigital number, since it uses as much as digits as its factorization.

2220947999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1469664, while the sum is 53.

The square root of 2220947999 is about 47126.9349629275. The cubic root of 2220947999 is about 1304.7064119388.

The spelling of 2220947999 in words is "two billion, two hundred twenty million, nine hundred forty-seven thousand, nine hundred ninety-nine".