2221001999999 has 2 divisors, whose sum is σ = 2221002000000. Its totient is φ = 2221001999998.

The previous prime is 2221001999987. The next prime is 2221002000011. The reversal of 2221001999999 is 9999991001222.

It is a balanced prime because it is at equal distance from previous prime (2221001999987) and next prime (2221002000011).

It is a cyclic number.

It is not a de Polignac number, because 2221001999999 - 2³⁶ = 2152282523263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2221001996999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110500999999 + 1110501000000.

It is an arithmetic number, because the mean of its divisors is an integer number (1110501000000).

Almost surely, 2^{2221001999999} is an apocalyptic number.

2221001999999 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221001999999 is an equidigital number, since it uses as much as digits as its factorization.

2221001999999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4251528, while the sum is 62.

The spelling of 2221001999999 in words is "two trillion, two hundred twenty-one billion, one million, nine hundred ninety-nine thousand, nine hundred ninety-nine".