22012112122111 has 2 divisors, whose sum is σ = 22012112122112. Its totient is φ = 22012112122110.

The previous prime is 22012112122103. The next prime is 22012112122153. The reversal of 22012112122111 is 11122121121022.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22012112122111 - 2³ = 22012112122103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22012112122171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11006056061055 + 11006056061056.

It is an arithmetic number, because the mean of its divisors is an integer number (11006056061056).

Almost surely, 2^{22012112122111} is an apocalyptic number.

22012112122111 is a deficient number, since it is larger than the sum of its proper divisors (1).

22012112122111 is an equidigital number, since it uses as much as digits as its factorization.

22012112122111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 22012112122111 its reverse (11122121121022), we get a palindrome (33134233243133).

The spelling of 22012112122111 in words is "twenty-two trillion, twelve billion, one hundred twelve million, one hundred twenty-two thousand, one hundred eleven".