10212222112111 has 2 divisors, whose sum is σ = 10212222112112. Its totient is φ = 10212222112110.

The previous prime is 10212222112097. The next prime is 10212222112171. The reversal of 10212222112111 is 11121122221201.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10212222112111 - 2²⁵ = 10212188557679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10212222112171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5106111056055 + 5106111056056.

It is an arithmetic number, because the mean of its divisors is an integer number (5106111056056).

Almost surely, 2^{10212222112111} is an apocalyptic number.

10212222112111 is a deficient number, since it is larger than the sum of its proper divisors (1).

10212222112111 is an equidigital number, since it uses as much as digits as its factorization.

10212222112111 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 10212222112111 its reverse (11121122221201), we get a palindrome (21333344333312).

The spelling of 10212222112111 in words is "ten trillion, two hundred twelve billion, two hundred twenty-two million, one hundred twelve thousand, one hundred eleven".