221202021202 has 16 divisors (see below), whose sum is σ = 336674742912. Its totient is φ = 108980048160.

The previous prime is 221202021199. The next prime is 221202021233. The reversal of 221202021202 is 202120202122.

221202021202 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 584238 + ... + 885289.

It is an arithmetic number, because the mean of its divisors is an integer number (21042171432).

Almost surely, 2^221202021202 is an apocalyptic number.

221202021202 is a deficient number, since it is larger than the sum of its proper divisors (115472721710).

221202021202 is a wasteful number, since it uses less digits than its factorization.

221202021202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1470633.

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

Adding to 221202021202 its reverse (202120202122), we get a palindrome (423322223324).

It can be divided in two parts, 22120202120 and 2, that added together give a palindrome (22120202122).

The spelling of 221202021202 in words is "two hundred twenty-one billion, two hundred two million, twenty-one thousand, two hundred two".