22102001111 has 4 divisors (see below), whose sum is σ = 22103208432. Its totient is φ = 22100793792.

The previous prime is 22102001093. The next prime is 22102001113. The reversal of 22102001111 is 11110020122.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22102001111 - 2¹⁴ = 22101984727 is a prime.

It is a super-2 number, since 2×22102001111² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22102001092 and 22102001101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22102001113) 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, 575771 + ... + 612956.

It is an arithmetic number, because the mean of its divisors is an integer number (5525802108).

Almost surely, 2^22102001111 is an apocalyptic number.

22102001111 is a deficient number, since it is larger than the sum of its proper divisors (1207321).

22102001111 is a wasteful number, since it uses less digits than its factorization.

22102001111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1207320.

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

Adding to 22102001111 its reverse (11110020122), we get a palindrome (33212021233).

The spelling of 22102001111 in words is "twenty-two billion, one hundred two million, one thousand, one hundred eleven".