22001331101 has 4 divisors (see below), whose sum is σ = 22063658172. Its totient is φ = 21939004032.

The previous prime is 22001331097. The next prime is 22001331137. The reversal of 22001331101 is 10113310022.

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 6703351876 + 15297979225 = 81874^2 + 123685^2 .

It is a cyclic number.

It is not a de Polignac number, because 22001331101 - 2² = 22001331097 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 (22001331601) 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, 31163006 + ... + 31163711.

It is an arithmetic number, because the mean of its divisors is an integer number (5515914543).

Almost surely, 2^22001331101 is an apocalyptic number.

It is an amenable number.

22001331101 is a deficient number, since it is larger than the sum of its proper divisors (62327071).

22001331101 is an equidigital number, since it uses as much as digits as its factorization.

22001331101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62327070.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 22001331101 its reverse (10113310022), we get a palindrome (32114641123).

The spelling of 22001331101 in words is "twenty-two billion, one million, three hundred thirty-one thousand, one hundred one".