22021100111 has 8 divisors (see below), whose sum is σ = 23182346880. Its totient is φ = 20860077528.

The previous prime is 22021100053. The next prime is 22021100117. The reversal of 22021100111 is 11100112022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22021100111 - 2¹⁸ = 22020837967 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22021100092 and 22021100101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22021100117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168740 + ... + 269286.

It is an arithmetic number, because the mean of its divisors is an integer number (2897793360).

Almost surely, 2^22021100111 is an apocalyptic number.

22021100111 is a deficient number, since it is larger than the sum of its proper divisors (1161246769).

22021100111 is a wasteful number, since it uses less digits than its factorization.

22021100111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112093.

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

Adding to 22021100111 its reverse (11100112022), we get a palindrome (33121212133).

The spelling of 22021100111 in words is "twenty-two billion, twenty-one million, one hundred thousand, one hundred eleven".