2000122101 has 12 divisors (see below), whose sum is σ = 2900053728. Its totient is φ = 1328343144.

The previous prime is 2000122087. The next prime is 2000122129. The reversal of 2000122101 is 1012210002.

It is not a de Polignac number, because 2000122101 - 2⁶ = 2000122037 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 (2000123101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 420135 + ... + 424868.

It is an arithmetic number, because the mean of its divisors is an integer number (241671144).

Almost surely, 2^2000122101 is an apocalyptic number.

It is an amenable number.

2000122101 is a deficient number, since it is larger than the sum of its proper divisors (899931627).

2000122101 is a wasteful number, since it uses less digits than its factorization.

2000122101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 845272 (or 845269 counting only the distinct ones).

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

The square root of 2000122101 is about 44722.7246598416. The cubic root of 2000122101 is about 1259.9466889765.

Adding to 2000122101 its reverse (1012210002), we get a palindrome (3012332103).

The spelling of 2000122101 in words is "two billion, one hundred twenty-two thousand, one hundred one".