22001100220001 has 8 divisors (see below), whose sum is σ = 25150287934464. Its totient is φ = 18853455854880.

The previous prime is 22001100219991. The next prime is 22001100220067. The reversal of 22001100220001 is 10002200110022.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22001100220001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22001100220081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 385806785 + ... + 385863806.

It is an arithmetic number, because the mean of its divisors is an integer number (3143785991808).

Almost surely, 2^{22001100220001} is an apocalyptic number.

It is an amenable number.

22001100220001 is a deficient number, since it is larger than the sum of its proper divisors (3149187714463).

22001100220001 is an equidigital number, since it uses as much as digits as its factorization.

22001100220001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 771674671.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 22001100220001 its reverse (10002200110022), we get a palindrome (32003300330023).

The spelling of 22001100220001 in words is "twenty-two trillion, one billion, one hundred million, two hundred twenty thousand, one".