22010001010001 has 8 divisors (see below), whose sum is σ = 22776666673320. Its totient is φ = 21243848687488.

The previous prime is 22010001009851. The next prime is 22010001010003. The reversal of 22010001010001 is 10001010001022.

It can be written as a sum of positive squares in 4 ways, for example, as 2145829468225 + 19864171541776 = 1464865^2 + 4456924^2 .

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-22010001010001 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22010001010003) 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, 128247956 + ... + 128419461.

It is an arithmetic number, because the mean of its divisors is an integer number (2847083334165).

Almost surely, 2^{22010001010001} is an apocalyptic number.

It is an amenable number.

22010001010001 is a deficient number, since it is larger than the sum of its proper divisors (766665663319).

22010001010001 is a wasteful number, since it uses less digits than its factorization.

22010001010001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256670403.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 22010001010001 its reverse (10001010001022), we get a palindrome (32011011011023).

The spelling of 22010001010001 in words is "twenty-two trillion, ten billion, one million, ten thousand, one".