100021022111 has 2 divisors, whose sum is σ = 100021022112. Its totient is φ = 100021022110.

The previous prime is 100021022089. The next prime is 100021022131. The reversal of 100021022111 is 111220120001.

It is a strong prime.

It is an emirp because it is prime and its reverse (111220120001) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100021022111 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100021022092 and 100021022101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100021022131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50010511055 + 50010511056.

It is an arithmetic number, because the mean of its divisors is an integer number (50010511056).

Almost surely, 2^100021022111 is an apocalyptic number.

100021022111 is a deficient number, since it is larger than the sum of its proper divisors (1).

100021022111 is an equidigital number, since it uses as much as digits as its factorization.

100021022111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 100021022111 its reverse (111220120001), we get a palindrome (211241142112).

The spelling of 100021022111 in words is "one hundred billion, twenty-one million, twenty-two thousand, one hundred eleven".