212212111093 has 2 divisors, whose sum is σ = 212212111094. Its totient is φ = 212212111092.

The previous prime is 212212111091. The next prime is 212212111117. The reversal of 212212111093 is 390111212212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 164545432164 + 47666678929 = 405642^2 + 218327^2 .

It is a cyclic number.

It is not a de Polignac number, because 212212111093 - 2¹ = 212212111091 is a prime.

Together with 212212111091, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212212111091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106106055546 + 106106055547.

It is an arithmetic number, because the mean of its divisors is an integer number (106106055547).

Almost surely, 2^212212111093 is an apocalyptic number.

It is an amenable number.

212212111093 is a deficient number, since it is larger than the sum of its proper divisors (1).

212212111093 is an equidigital number, since it uses as much as digits as its factorization.

212212111093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 25.

The spelling of 212212111093 in words is "two hundred twelve billion, two hundred twelve million, one hundred eleven thousand, ninety-three".