2102220201111 has 4 divisors (see below), whose sum is σ = 2802960268152. Its totient is φ = 1401480134072.

The previous prime is 2102220201077. The next prime is 2102220201197. The reversal of 2102220201111 is 1111020222012.

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

It is a cyclic number.

It is not a de Polignac number, because 2102220201111 - 2⁹ = 2102220200599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102220201911) 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, 350370033516 + ... + 350370033521.

It is an arithmetic number, because the mean of its divisors is an integer number (700740067038).

Almost surely, 2^{2102220201111} is an apocalyptic number.

2102220201111 is a deficient number, since it is larger than the sum of its proper divisors (700740067041).

2102220201111 is an equidigital number, since it uses as much as digits as its factorization.

2102220201111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700740067040.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2102220201111 its reverse (1111020222012), we get a palindrome (3213240423123).

The spelling of 2102220201111 in words is "two trillion, one hundred two billion, two hundred twenty million, two hundred one thousand, one hundred eleven".