100211121223 has 2 divisors, whose sum is σ = 100211121224. Its totient is φ = 100211121222.

The previous prime is 100211121209. The next prime is 100211121239. The reversal of 100211121223 is 322121112001.

It is an a-pointer prime, because the next prime (100211121239) can be obtained adding 100211121223 to its sum of digits (16).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100211121223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100211121197 and 100211121206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100211161223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50105560611 + 50105560612.

It is an arithmetic number, because the mean of its divisors is an integer number (50105560612).

Almost surely, 2^100211121223 is an apocalyptic number.

100211121223 is a deficient number, since it is larger than the sum of its proper divisors (1).

100211121223 is an equidigital number, since it uses as much as digits as its factorization.

100211121223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 100211121223 its reverse (322121112001), we get a palindrome (422332233224).

It can be divided in two parts, 1002 and 11121223, that added together give a square (11122225 = 3335²).

The spelling of 100211121223 in words is "one hundred billion, two hundred eleven million, one hundred twenty-one thousand, two hundred twenty-three".