2221111100211 has 8 divisors (see below), whose sum is σ = 2961543921600. Its totient is φ = 1480709506152.

The previous prime is 2221111100207. The next prime is 2221111100267. The reversal of 2221111100211 is 1120011111222.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2221111100211 - 2² = 2221111100207 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2221111100281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7640361 + ... + 7925738.

It is an arithmetic number, because the mean of its divisors is an integer number (370192990200).

Almost surely, 2^{2221111100211} is an apocalyptic number.

2221111100211 is a deficient number, since it is larger than the sum of its proper divisors (740432821389).

2221111100211 is a wasteful number, since it uses less digits than its factorization.

2221111100211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15613665.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 2221111100211 its reverse (1120011111222), we get a palindrome (3341122211433).

The spelling of 2221111100211 in words is "two trillion, two hundred twenty-one billion, one hundred eleven million, one hundred thousand, two hundred eleven".