22001112102005 has 16 divisors (see below), whose sum is σ = 26496642337200. Its totient is φ = 17537357537280.

The previous prime is 22001112101977. The next prime is 22001112102037. The reversal of 22001112102005 is 50020121110022.

It can be written as a sum of positive squares in 8 ways, for example, as 5630364919921 + 16370747182084 = 2372839^2 + 4046078^2 .

It is not a de Polignac number, because 22001112102005 - 2²⁰ = 22001111053429 is a prime.

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, 27835301 + ... + 28614789.

It is an arithmetic number, because the mean of its divisors is an integer number (1656040146075).

Almost surely, 2^{22001112102005} is an apocalyptic number.

It is an amenable number.

22001112102005 is a deficient number, since it is larger than the sum of its proper divisors (4495530235195).

22001112102005 is a wasteful number, since it uses less digits than its factorization.

22001112102005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 799864.

The product of its (nonzero) digits is 80, while the sum is 17.

Adding to 22001112102005 its reverse (50020121110022), we get a palindrome (72021233212027).

The spelling of 22001112102005 in words is "twenty-two trillion, one billion, one hundred twelve million, one hundred two thousand, five".