1700221111211 has 4 divisors (see below), whose sum is σ = 1943109841392. Its totient is φ = 1457332381032.

The previous prime is 1700221111201. The next prime is 1700221111219. The reversal of 1700221111211 is 1121111220071.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1700221111211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1700221111219) 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 in 3 ways as a sum of consecutive naturals, for example, 121444365080 + ... + 121444365093.

It is an arithmetic number, because the mean of its divisors is an integer number (485777460348).

Almost surely, 2^{1700221111211} is an apocalyptic number.

1700221111211 is a deficient number, since it is larger than the sum of its proper divisors (242888730181).

1700221111211 is an equidigital number, since it uses as much as digits as its factorization.

1700221111211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242888730180.

The product of its (nonzero) digits is 56, while the sum is 20.

Adding to 1700221111211 its reverse (1121111220071), we get a palindrome (2821332331282).

The spelling of 1700221111211 in words is "one trillion, seven hundred billion, two hundred twenty-one million, one hundred eleven thousand, two hundred eleven".