202201320 has 32 divisors (see below), whose sum is σ = 606604320. Its totient is φ = 53920320.

The previous prime is 202201309. The next prime is 202201327. The reversal of 202201320 is 23102202.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 202201296 and 202201305.

It is not an unprimeable number, because it can be changed into a prime (202201327) 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, 842386 + ... + 842625.

It is an arithmetic number, because the mean of its divisors is an integer number (18956385).

Almost surely, 2^202201320 is an apocalyptic number.

202201320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202201320 is an abundant number, since it is smaller than the sum of its proper divisors (404403000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

202201320 is a wasteful number, since it uses less digits than its factorization.

202201320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1685025 (or 1685021 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 202201320 is about 14219.7510526732. The cubic root of 202201320 is about 586.9412898725.

Adding to 202201320 its reverse (23102202), we get a palindrome (225303522).

The spelling of 202201320 in words is "two hundred two million, two hundred one thousand, three hundred twenty".