100022221111 has 4 divisors (see below), whose sum is σ = 100023267312. Its totient is φ = 100021174912.

The previous prime is 100022221081. The next prime is 100022221141. The reversal of 100022221111 is 111122220001.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (100022221081) and next prime (100022221141).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100022221111 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100022221091 and 100022221100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100022221141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 363451 + ... + 576316.

It is an arithmetic number, because the mean of its divisors is an integer number (25005816828).

Almost surely, 2^100022221111 is an apocalyptic number.

100022221111 is a deficient number, since it is larger than the sum of its proper divisors (1046201).

100022221111 is an equidigital number, since it uses as much as digits as its factorization.

100022221111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1046200.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 100022221111 its reverse (111122220001), we get a palindrome (211144441112).

The spelling of 100022221111 in words is "one hundred billion, twenty-two million, two hundred twenty-one thousand, one hundred eleven".