212211221101193 has 2 divisors, whose sum is σ = 212211221101194. Its totient is φ = 212211221101192.

The previous prime is 212211221101189. The next prime is 212211221101259. The reversal of 212211221101193 is 391101122112212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 210586302374464 + 1624918726729 = 14511592^2 + 1274723^2 .

It is a cyclic number.

It is not a de Polignac number, because 212211221101193 - 2² = 212211221101189 is a prime.

It is a super-2 number, since 2×212211221101193² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (212211521101193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106105610550596 + 106105610550597.

It is an arithmetic number, because the mean of its divisors is an integer number (106105610550597).

Almost surely, 2^{212211221101193} is an apocalyptic number.

It is an amenable number.

212211221101193 is a deficient number, since it is larger than the sum of its proper divisors (1).

212211221101193 is an equidigital number, since it uses as much as digits as its factorization.

212211221101193 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 29.

The spelling of 212211221101193 in words is "two hundred twelve trillion, two hundred eleven billion, two hundred twenty-one million, one hundred one thousand, one hundred ninety-three".