22001122005 has 16 divisors (see below), whose sum is σ = 35236365120. Its totient is φ = 11722408448.

The previous prime is 22001121959. The next prime is 22001122019. The reversal of 22001122005 is 50022110022.

It is a cyclic number.

It is not a de Polignac number, because 22001122005 - 2⁸ = 22001121749 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 704412 + ... + 734981.

It is an arithmetic number, because the mean of its divisors is an integer number (2202272820).

Almost surely, 2^22001122005 is an apocalyptic number.

It is an amenable number.

22001122005 is a deficient number, since it is larger than the sum of its proper divisors (13235243115).

22001122005 is a wasteful number, since it uses less digits than its factorization.

22001122005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1440420.

The product of its (nonzero) digits is 80, while the sum is 15.

Adding to 22001122005 its reverse (50022110022), we get a palindrome (72023232027).

The spelling of 22001122005 in words is "twenty-two billion, one million, one hundred twenty-two thousand, five".