221021201202 has 16 divisors (see below), whose sum is σ = 445416773472. Its totient is φ = 73111338560.

The previous prime is 221021201161. The next prime is 221021201209. The reversal of 221021201202 is 202102120122.

It is not an unprimeable number, because it can be changed into a prime (221021201209) 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, 140597943 + ... + 140599514.

It is an arithmetic number, because the mean of its divisors is an integer number (27838548342).

Almost surely, 2^221021201202 is an apocalyptic number.

221021201202 is an abundant number, since it is smaller than the sum of its proper divisors (224395572270).

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

221021201202 is a wasteful number, since it uses less digits than its factorization.

221021201202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281197593.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 221021201202 its reverse (202102120122), we get a palindrome (423123321324).

It can be divided in two parts, 22102120120 and 2, that added together give a palindrome (22102120122).

The spelling of 221021201202 in words is "two hundred twenty-one billion, twenty-one million, two hundred one thousand, two hundred two".