221031013202 has 32 divisors (see below), whose sum is σ = 364676546304. Its totient is φ = 100048345600.

The previous prime is 221031013171. The next prime is 221031013241. The reversal of 221031013202 is 202310130122.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1017638 + ... + 1215585.

It is an arithmetic number, because the mean of its divisors is an integer number (11396142072).

Almost surely, 2^221031013202 is an apocalyptic number.

221031013202 is a deficient number, since it is larger than the sum of its proper divisors (143645533102).

221031013202 is a wasteful number, since it uses less digits than its factorization.

221031013202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2233354.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 221031013202 its reverse (202310130122), we get a palindrome (423341143324).

The spelling of 221031013202 in words is "two hundred twenty-one billion, thirty-one million, thirteen thousand, two hundred two".