221202022 has 16 divisors (see below), whose sum is σ = 339655680. Its totient is φ = 107994568.

The previous prime is 221202013. The next prime is 221202029. The reversal of 221202022 is 220202122.

It is a junction number, because it is equal to n+sod(n) for n = 221201993 and 221202011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221202029) 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, 41379 + ... + 46417.

It is an arithmetic number, because the mean of its divisors is an integer number (21228480).

Almost surely, 2^221202022 is an apocalyptic number.

221202022 is a deficient number, since it is larger than the sum of its proper divisors (118453658).

221202022 is a wasteful number, since it uses less digits than its factorization.

221202022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5555.

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 221202022 is about 14872.8619303751. The cubic root of 221202022 is about 604.7785287763.

Adding to 221202022 its reverse (220202122), we get a palindrome (441404144).

It can be divided in two parts, 22120 and 2022, that added together give a palindrome (24142).

The spelling of 221202022 in words is "two hundred twenty-one million, two hundred two thousand, twenty-two".