222212111213111 has 4 divisors (see below), whose sum is σ = 222268410206472. Its totient is φ = 222155812219752.

The previous prime is 222212111213041. The next prime is 222212111213137. The reversal of 222212111213111 is 111312111212222.

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 222212111213111 - 2¹⁰ = 222212111212087 is a prime.

It is a super-2 number, since 2×222212111213111² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222212111213161) 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, 28149490760 + ... + 28149498653.

It is an arithmetic number, because the mean of its divisors is an integer number (55567102551618).

Almost surely, 2^{222212111213111} is an apocalyptic number.

222212111213111 is a deficient number, since it is larger than the sum of its proper divisors (56298993361).

222212111213111 is an equidigital number, since it uses as much as digits as its factorization.

222212111213111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56298993360.

The product of its digits is 192, while the sum is 23.

Adding to 222212111213111 its reverse (111312111212222), we get a palindrome (333524222425333).

The spelling of 222212111213111 in words is "two hundred twenty-two trillion, two hundred twelve billion, one hundred eleven million, two hundred thirteen thousand, one hundred eleven".