2001222200249 has 2 divisors, whose sum is σ = 2001222200250. Its totient is φ = 2001222200248.

The previous prime is 2001222200231. The next prime is 2001222200287. The reversal of 2001222200249 is 9420022221002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1961554308025 + 39667892224 = 1400555^2 + 199168^2 .

It is a cyclic number.

It is not a de Polignac number, because 2001222200249 - 2⁸ = 2001222199993 is a prime.

It is not a weakly prime, because it can be changed into another prime (2001222200149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000611100124 + 1000611100125.

It is an arithmetic number, because the mean of its divisors is an integer number (1000611100125).

Almost surely, 2^{2001222200249} is an apocalyptic number.

It is an amenable number.

2001222200249 is a deficient number, since it is larger than the sum of its proper divisors (1).

2001222200249 is an equidigital number, since it uses as much as digits as its factorization.

2001222200249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 26.

The spelling of 2001222200249 in words is "two trillion, one billion, two hundred twenty-two million, two hundred thousand, two hundred forty-nine".