212220040210111 has 2 divisors, whose sum is σ = 212220040210112. Its totient is φ = 212220040210110.

The previous prime is 212220040210099. The next prime is 212220040210121. The reversal of 212220040210111 is 111012040022212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212220040210111 - 2³⁹ = 211670284396223 is a prime.

It is a super-2 number, since 2×212220040210111² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212220040210121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106110020105055 + 106110020105056.

It is an arithmetic number, because the mean of its divisors is an integer number (106110020105056).

Almost surely, 2^{212220040210111} is an apocalyptic number.

212220040210111 is a deficient number, since it is larger than the sum of its proper divisors (1).

212220040210111 is an equidigital number, since it uses as much as digits as its factorization.

212220040210111 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 212220040210111 its reverse (111012040022212), we get a palindrome (323232080232323).

The spelling of 212220040210111 in words is "two hundred twelve trillion, two hundred twenty billion, forty million, two hundred ten thousand, one hundred eleven".