20022001232101 has 4 divisors (see below), whose sum is σ = 21842183162304. Its totient is φ = 18201819301900.

The previous prime is 20022001232071. The next prime is 20022001232111. The reversal of 20022001232101 is 10123210022002.

It is a happy number.

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 20022001232101 - 2³⁵ = 19987641493733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20022001232111) 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, 910090965085 + ... + 910090965106.

It is an arithmetic number, because the mean of its divisors is an integer number (5460545790576).

Almost surely, 2^{20022001232101} is an apocalyptic number.

It is an amenable number.

20022001232101 is a deficient number, since it is larger than the sum of its proper divisors (1820181930203).

20022001232101 is a wasteful number, since it uses less digits than its factorization.

20022001232101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1820181930202.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 20022001232101 its reverse (10123210022002), we get a palindrome (30145211254103).

The spelling of 20022001232101 in words is "twenty trillion, twenty-two billion, one million, two hundred thirty-two thousand, one hundred one".