22001022111 has 16 divisors (see below), whose sum is σ = 30062426240. Its totient is φ = 14304517920.

The previous prime is 22001022079. The next prime is 22001022151. The reversal of 22001022111 is 11122010022.

It is not a de Polignac number, because 22001022111 - 2⁵ = 22001022079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22001022151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43741 + ... + 214278.

It is an arithmetic number, because the mean of its divisors is an integer number (1878901640).

Almost surely, 2^22001022111 is an apocalyptic number.

22001022111 is a deficient number, since it is larger than the sum of its proper divisors (8061404129).

22001022111 is a wasteful number, since it uses less digits than its factorization.

22001022111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258726.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 22001022111 its reverse (11122010022), we get a palindrome (33123032133).

The spelling of 22001022111 in words is "twenty-two billion, one million, twenty-two thousand, one hundred eleven".