202221001123 has 4 divisors (see below), whose sum is σ = 203578189200. Its totient is φ = 200863813048.

The previous prime is 202221001093. The next prime is 202221001163. The reversal of 202221001123 is 321100122202.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 321100122202 = 2 ⋅160550061101.

It is a cyclic number.

It is not a de Polignac number, because 202221001123 - 2¹³ = 202220992931 is a prime.

It is a super-2 number, since 2×202221001123² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202221001097 and 202221001106.

It is not an unprimeable number, because it can be changed into a prime (202221001163) 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, 678593815 + ... + 678594112.

It is an arithmetic number, because the mean of its divisors is an integer number (50894547300).

Almost surely, 2^202221001123 is an apocalyptic number.

202221001123 is a deficient number, since it is larger than the sum of its proper divisors (1357188077).

202221001123 is a wasteful number, since it uses less digits than its factorization.

202221001123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1357188076.

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

Adding to 202221001123 its reverse (321100122202), we get a palindrome (523321123325).

The spelling of 202221001123 in words is "two hundred two billion, two hundred twenty-one million, one thousand, one hundred twenty-three".