100212121100111 has 2 divisors, whose sum is σ = 100212121100112. Its totient is φ = 100212121100110.

The previous prime is 100212121100023. The next prime is 100212121100123. The reversal of 100212121100111 is 111001121212001.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100212121100111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100212121100131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50106060550055 + 50106060550056.

It is an arithmetic number, because the mean of its divisors is an integer number (50106060550056).

Almost surely, 2^{100212121100111} is an apocalyptic number.

100212121100111 is a deficient number, since it is larger than the sum of its proper divisors (1).

100212121100111 is an equidigital number, since it uses as much as digits as its factorization.

100212121100111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 100212121100111 its reverse (111001121212001), we get a palindrome (211213242312112).

The spelling of 100212121100111 in words is "one hundred trillion, two hundred twelve billion, one hundred twenty-one million, one hundred thousand, one hundred eleven".