20000122101 has 8 divisors (see below), whose sum is σ = 29629810560. Its totient is φ = 13333414716.

The previous prime is 20000122069. The next prime is 20000122123. The reversal of 20000122101 is 10122100002.

It is not a de Polignac number, because 20000122101 - 2⁵ = 20000122069 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20000122001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 370372605 + ... + 370372658.

It is an arithmetic number, because the mean of its divisors is an integer number (3703726320).

Almost surely, 2^20000122101 is an apocalyptic number.

It is an amenable number.

20000122101 is a deficient number, since it is larger than the sum of its proper divisors (9629688459).

20000122101 is an equidigital number, since it uses as much as digits as its factorization.

20000122101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 740745272 (or 740745266 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 20000122101 its reverse (10122100002), we get a palindrome (30122222103).

The spelling of 20000122101 in words is "twenty billion, one hundred twenty-two thousand, one hundred one".