100121212110223 has 2 divisors, whose sum is σ = 100121212110224. Its totient is φ = 100121212110222.

The previous prime is 100121212110193. The next prime is 100121212110247. The reversal of 100121212110223 is 322011212121001.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100121212110223 is a prime.

It is a super-2 number, since 2×100121212110223² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 100121212110223.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100121212110323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50060606055111 + 50060606055112.

It is an arithmetic number, because the mean of its divisors is an integer number (50060606055112).

Almost surely, 2^{100121212110223} is an apocalyptic number.

100121212110223 is a deficient number, since it is larger than the sum of its proper divisors (1).

100121212110223 is an equidigital number, since it uses as much as digits as its factorization.

100121212110223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 100121212110223 its reverse (322011212121001), we get a palindrome (422132424231224).

The spelling of 100121212110223 in words is "one hundred trillion, one hundred twenty-one billion, two hundred twelve million, one hundred ten thousand, two hundred twenty-three".