200122220101 has 4 divisors (see below), whose sum is σ = 201138069132. Its totient is φ = 199106371072.

The previous prime is 200122220029. The next prime is 200122220141. The reversal of 200122220101 is 101022221002.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 189564452100 + 10557768001 = 435390^2 + 102751^2 .

It is a cyclic number.

It is not a de Polignac number, because 200122220101 - 2²¹ = 200120122949 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 (200122220141) 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, 507924220 + ... + 507924613.

It is an arithmetic number, because the mean of its divisors is an integer number (50284517283).

Almost surely, 2^200122220101 is an apocalyptic number.

It is an amenable number.

200122220101 is a deficient number, since it is larger than the sum of its proper divisors (1015849031).

200122220101 is a wasteful number, since it uses less digits than its factorization.

200122220101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1015849030.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 200122220101 its reverse (101022221002), we get a palindrome (301144441103).

Subtracting from 200122220101 its reverse (101022221002), we obtain a palindrome (99099999099).

The spelling of 200122220101 in words is "two hundred billion, one hundred twenty-two million, two hundred twenty thousand, one hundred one".