100212202222091 has 2 divisors, whose sum is σ = 100212202222092. Its totient is φ = 100212202222090.

The previous prime is 100212202222057. The next prime is 100212202222123. The reversal of 100212202222091 is 190222202212001.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100212202222091 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 100212202222091.

It is not a weakly prime, because it can be changed into another prime (100212202222031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50106101111045 + 50106101111046.

It is an arithmetic number, because the mean of its divisors is an integer number (50106101111046).

Almost surely, 2^{100212202222091} is an apocalyptic number.

100212202222091 is a deficient number, since it is larger than the sum of its proper divisors (1).

100212202222091 is an equidigital number, since it uses as much as digits as its factorization.

100212202222091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 26.

Adding to 100212202222091 its reverse (190222202212001), we get a palindrome (290434404434092).

The spelling of 100212202222091 in words is "one hundred trillion, two hundred twelve billion, two hundred two million, two hundred twenty-two thousand, ninety-one".