20102202211001 has 4 divisors (see below), whose sum is σ = 20431746509604. Its totient is φ = 19772657912400.

The previous prime is 20102202210973. The next prime is 20102202211031. The reversal of 20102202211001 is 10011220220102.

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 5529270073600 + 14572932137401 = 2351440^2 + 3817451^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20102202211001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20102202211031) 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, 164772149210 + ... + 164772149331.

It is an arithmetic number, because the mean of its divisors is an integer number (5107936627401).

Almost surely, 2^{20102202211001} is an apocalyptic number.

It is an amenable number.

20102202211001 is a deficient number, since it is larger than the sum of its proper divisors (329544298603).

20102202211001 is an equidigital number, since it uses as much as digits as its factorization.

20102202211001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329544298602.

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

Adding to 20102202211001 its reverse (10011220220102), we get a palindrome (30113422431103).

The spelling of 20102202211001 in words is "twenty trillion, one hundred two billion, two hundred two million, two hundred eleven thousand, one".