20201110222001 has 4 divisors (see below), whose sum is σ = 21079419362112. Its totient is φ = 19322801081892.

The previous prime is 20201110221979. The next prime is 20201110222057. The reversal of 20201110222001 is 10022201110202.

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 a de Polignac number, because none of the positive numbers 2^k-20201110222001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20201118222001) 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, 439154570021 + ... + 439154570066.

It is an arithmetic number, because the mean of its divisors is an integer number (5269854840528).

Almost surely, 2^{20201110222001} is an apocalyptic number.

It is an amenable number.

20201110222001 is a deficient number, since it is larger than the sum of its proper divisors (878309140111).

20201110222001 is an equidigital number, since it uses as much as digits as its factorization.

20201110222001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 878309140110.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20201110222001 its reverse (10022201110202), we get a palindrome (30223311332203).

The spelling of 20201110222001 in words is "twenty trillion, two hundred one billion, one hundred ten million, two hundred twenty-two thousand, one".