221001211202199 has 4 divisors (see below), whose sum is σ = 294668281602936. Its totient is φ = 147334140801464.

The previous prime is 221001211202171. The next prime is 221001211202227. The reversal of 221001211202199 is 991202112100122.

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

It is an interprime number because it is at equal distance from previous prime (221001211202171) and next prime (221001211202227).

It is a cyclic number.

It is not a de Polignac number, because 221001211202199 - 2¹⁷ = 221001211071127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221001211202099) 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, 36833535200364 + ... + 36833535200369.

It is an arithmetic number, because the mean of its divisors is an integer number (73667070400734).

Almost surely, 2^{221001211202199} is an apocalyptic number.

221001211202199 is a deficient number, since it is larger than the sum of its proper divisors (73667070400737).

221001211202199 is an equidigital number, since it uses as much as digits as its factorization.

221001211202199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73667070400736.

The product of its (nonzero) digits is 2592, while the sum is 33.

The spelling of 221001211202199 in words is "two hundred twenty-one trillion, one billion, two hundred eleven million, two hundred two thousand, one hundred ninety-nine".