221302112202 has 80 divisors (see below), whose sum is σ = 528528255552. Its totient is φ = 68968195200.

The previous prime is 221302112201. The next prime is 221302112257. The reversal of 221302112202 is 202211203122.

221302112202 is a `hidden beast` number, since 221 + 30 + 211 + 2 + 202 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (221302112201) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 149773 + ... + 681935.

Almost surely, 2^221302112202 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 221302112202, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (264264127776).

221302112202 is an abundant number, since it is smaller than the sum of its proper divisors (307226143350).

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

221302112202 is a wasteful number, since it uses less digits than its factorization.

221302112202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532345 (or 532336 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 221302112202 its reverse (202211203122), we get a palindrome (423513315324).

The spelling of 221302112202 in words is "two hundred twenty-one billion, three hundred two million, one hundred twelve thousand, two hundred two".