11222212022111 has 2 divisors, whose sum is σ = 11222212022112. Its totient is φ = 11222212022110.

The previous prime is 11222212022089. The next prime is 11222212022129. The reversal of 11222212022111 is 11122021222211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11222212022111 - 2¹⁴ = 11222212005727 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11222212022011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5611106011055 + 5611106011056.

It is an arithmetic number, because the mean of its divisors is an integer number (5611106011056).

Almost surely, 2^{11222212022111} is an apocalyptic number.

11222212022111 is a deficient number, since it is larger than the sum of its proper divisors (1).

11222212022111 is an equidigital number, since it uses as much as digits as its factorization.

11222212022111 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 20.

Adding to 11222212022111 its reverse (11122021222211), we get a palindrome (22344233244322).

The spelling of 11222212022111 in words is "eleven trillion, two hundred twenty-two billion, two hundred twelve million, twenty-two thousand, one hundred eleven".