20022100011001 has 4 divisors (see below), whose sum is σ = 21842290921104. Its totient is φ = 18201909100900.

The previous prime is 20022100010947. The next prime is 20022100011007. The reversal of 20022100011001 is 10011000122002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20022100011001 - 2¹⁵ = 20022099978233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20022100011007) 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, 910095455035 + ... + 910095455056.

It is an arithmetic number, because the mean of its divisors is an integer number (5460572730276).

Almost surely, 2^{20022100011001} is an apocalyptic number.

It is an amenable number.

20022100011001 is a deficient number, since it is larger than the sum of its proper divisors (1820190910103).

20022100011001 is a wasteful number, since it uses less digits than its factorization.

20022100011001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1820190910102.

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

Adding to 20022100011001 its reverse (10011000122002), we get a palindrome (30033100133003).

The spelling of 20022100011001 in words is "twenty trillion, twenty-two billion, one hundred million, eleven thousand, one".