20000122002101 has 4 divisors (see below), whose sum is σ = 20425656512832. Its totient is φ = 19574587491372.

The previous prime is 20000122002013. The next prime is 20000122002139. The reversal of 20000122002101 is 10120022100002.

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 20000122002101 - 2¹⁸ = 20000121739957 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 (20000122092101) 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, 212767255295 + ... + 212767255388.

It is an arithmetic number, because the mean of its divisors is an integer number (5106414128208).

Almost surely, 2^{20000122002101} is an apocalyptic number.

It is an amenable number.

20000122002101 is a deficient number, since it is larger than the sum of its proper divisors (425534510731).

20000122002101 is an equidigital number, since it uses as much as digits as its factorization.

20000122002101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425534510730.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20000122002101 its reverse (10120022100002), we get a palindrome (30120144102103).

The spelling of 20000122002101 in words is "twenty trillion, one hundred twenty-two million, two thousand, one hundred one".