2221212102111 has 10 divisors (see below), whose sum is σ = 3318106967472. Its totient is φ = 1480808068020.

The previous prime is 2221212102097. The next prime is 2221212102169. The reversal of 2221212102111 is 1112012121222.

2221212102111 is a `hidden beast` number, since 2 + 221 + 21 + 210 + 211 + 1 = 666.

It is not a de Polignac number, because 2221212102111 - 2⁵ = 2221212102079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221212102511) 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 9 ways as a sum of consecutive naturals, for example, 13711185735 + ... + 13711185896.

Almost surely, 2^{2221212102111} is an apocalyptic number.

2221212102111 is a deficient number, since it is larger than the sum of its proper divisors (1096894865361).

2221212102111 is an equidigital number, since it uses as much as digits as its factorization.

2221212102111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27422371643 (or 27422371634 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 2221212102111 its reverse (1112012121222), we get a palindrome (3333224223333).

It can be divided in two parts, 222121 and 2102111, that added together give a palindrome (2324232).

The spelling of 2221212102111 in words is "two trillion, two hundred twenty-one billion, two hundred twelve million, one hundred two thousand, one hundred eleven".