212203111193 has 2 divisors, whose sum is σ = 212203111194. Its totient is φ = 212203111192.

The previous prime is 212203111189. The next prime is 212203111223. The reversal of 212203111193 is 391111302212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 128072368384 + 84130742809 = 357872^2 + 290053^2 .

It is a cyclic number.

It is not a de Polignac number, because 212203111193 - 2² = 212203111189 is a prime.

It is a super-3 number, since 3×212203111193³ (a number of 35 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (212203111163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106101555596 + 106101555597.

It is an arithmetic number, because the mean of its divisors is an integer number (106101555597).

Almost surely, 2^212203111193 is an apocalyptic number.

It is an amenable number.

212203111193 is a deficient number, since it is larger than the sum of its proper divisors (1).

212203111193 is an equidigital number, since it uses as much as digits as its factorization.

212203111193 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 26.

The spelling of 212203111193 in words is "two hundred twelve billion, two hundred three million, one hundred eleven thousand, one hundred ninety-three".