2221111100999 has 8 divisors (see below), whose sum is σ = 2538421703328. Its totient is φ = 1903802752800.

The previous prime is 2221111100969. The next prime is 2221111101017. The reversal of 2221111100999 is 9990011111222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2221111100999 - 2¹² = 2221111096903 is a prime.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221111100969) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3541229 + ... + 4120985.

It is an arithmetic number, because the mean of its divisors is an integer number (317302712916).

Almost surely, 2^{2221111100999} is an apocalyptic number.

2221111100999 is a deficient number, since it is larger than the sum of its proper divisors (317310602329).

2221111100999 is an equidigital number, since it uses as much as digits as its factorization.

2221111100999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1127065.

The product of its (nonzero) digits is 5832, while the sum is 38.

The spelling of 2221111100999 in words is "two trillion, two hundred twenty-one billion, one hundred eleven million, one hundred thousand, nine hundred ninety-nine".