2221022212111 has 2 divisors, whose sum is σ = 2221022212112. Its totient is φ = 2221022212110.

The previous prime is 2221022212063. The next prime is 2221022212121. The reversal of 2221022212111 is 1112122201222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2221022212111 - 2¹⁷ = 2221022081039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2221022212121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110511106055 + 1110511106056.

It is an arithmetic number, because the mean of its divisors is an integer number (1110511106056).

Almost surely, 2^{2221022212111} is an apocalyptic number.

2221022212111 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221022212111 is an equidigital number, since it uses as much as digits as its factorization.

2221022212111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 2221022212111 its reverse (1112122201222), we get a palindrome (3333144413333).

The spelling of 2221022212111 in words is "two trillion, two hundred twenty-one billion, twenty-two million, two hundred twelve thousand, one hundred eleven".