202220311213231 has 4 divisors (see below), whose sum is σ = 203675133596200. Its totient is φ = 200765488830264.

The previous prime is 202220311213211. The next prime is 202220311213247. The reversal of 202220311213231 is 132312113022202.

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

It is a cyclic number.

It is not a de Polignac number, because 202220311213231 - 2¹³ = 202220311205039 is a prime.

It is a super-2 number, since 2×202220311213231² (a number of 29 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 = 202220311213196 and 202220311213205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202220311213211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 727411191276 + ... + 727411191553.

It is an arithmetic number, because the mean of its divisors is an integer number (50918783399050).

Almost surely, 2^{202220311213231} is an apocalyptic number.

202220311213231 is a deficient number, since it is larger than the sum of its proper divisors (1454822382969).

202220311213231 is a wasteful number, since it uses less digits than its factorization.

202220311213231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1454822382968.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 202220311213231 its reverse (132312113022202), we get a palindrome (334532424235433).

The spelling of 202220311213231 in words is "two hundred two trillion, two hundred twenty billion, three hundred eleven million, two hundred thirteen thousand, two hundred thirty-one".