20022120202001 has 4 divisors (see below), whose sum is σ = 20275564761600. Its totient is φ = 19768675642404.

The previous prime is 20022120201997. The next prime is 20022120202003. The reversal of 20022120202001 is 10020202122002.

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 20022120202001 - 2² = 20022120201997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20022120202003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126722279681 + ... + 126722279838.

It is an arithmetic number, because the mean of its divisors is an integer number (5068891190400).

Almost surely, 2^{20022120202001} is an apocalyptic number.

It is an amenable number.

20022120202001 is a deficient number, since it is larger than the sum of its proper divisors (253444559599).

20022120202001 is an equidigital number, since it uses as much as digits as its factorization.

20022120202001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253444559598.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 20022120202001 its reverse (10020202122002), we get a palindrome (30042322324003).

The spelling of 20022120202001 in words is "twenty trillion, twenty-two billion, one hundred twenty million, two hundred two thousand, one".