22002011001001 has 4 divisors (see below), whose sum is σ = 22596659947012. Its totient is φ = 21407362054992.

The previous prime is 22002011000999. The next prime is 22002011001023. The reversal of 22002011001001 is 10010011020022.

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

It can be written as a sum of positive squares in 2 ways, for example, as 21267767666601 + 734243334400 = 4611699^2 + 856880^2 .

It is a cyclic number.

It is not a de Polignac number, because 22002011001001 - 2¹ = 22002011000999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22002011041001) 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, 297324472950 + ... + 297324473023.

It is an arithmetic number, because the mean of its divisors is an integer number (5649164986753).

Almost surely, 2^{22002011001001} is an apocalyptic number.

It is an amenable number.

22002011001001 is a deficient number, since it is larger than the sum of its proper divisors (594648946011).

22002011001001 is an equidigital number, since it uses as much as digits as its factorization.

22002011001001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 594648946010.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 22002011001001 its reverse (10010011020022), we get a palindrome (32012022021023).

The spelling of 22002011001001 in words is "twenty-two trillion, two billion, eleven million, one thousand, one".