221220201202 has 32 divisors (see below), whose sum is σ = 445534395264. Its totient is φ = 79559712000.

The previous prime is 221220201197. The next prime is 221220201203. The reversal of 221220201202 is 202102022122.

It is not an unprimeable number, because it can be changed into a prime (221220201203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55247799 + ... + 55251802.

It is an arithmetic number, because the mean of its divisors is an integer number (13922949852).

Almost surely, 2^221220201202 is an apocalyptic number.

221220201202 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

221220201202 is an abundant number, since it is smaller than the sum of its proper divisors (224314194062).

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

221220201202 is a wasteful number, since it uses less digits than its factorization.

221220201202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110499634.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 221220201202 its reverse (202102022122), we get a palindrome (423322223324).

The spelling of 221220201202 in words is "two hundred twenty-one billion, two hundred twenty million, two hundred one thousand, two hundred two".