222100012120111 has 2 divisors, whose sum is σ = 222100012120112. Its totient is φ = 222100012120110.

The previous prime is 222100012119961. The next prime is 222100012120121. The reversal of 222100012120111 is 111021210001222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 222100012120111 - 2²¹ = 222100010022959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222100012120121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111050006060055 + 111050006060056.

It is an arithmetic number, because the mean of its divisors is an integer number (111050006060056).

Almost surely, 2^{222100012120111} is an apocalyptic number.

222100012120111 is a deficient number, since it is larger than the sum of its proper divisors (1).

222100012120111 is an equidigital number, since it uses as much as digits as its factorization.

222100012120111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 222100012120111 its reverse (111021210001222), we get a palindrome (333121222121333).

The spelling of 222100012120111 in words is "two hundred twenty-two trillion, one hundred billion, twelve million, one hundred twenty thousand, one hundred eleven".