21202002202222 has 8 divisors (see below), whose sum is σ = 31803024418776. Its totient is φ = 10600994062632.

The previous prime is 21202002202207. The next prime is 21202002202229. The reversal of 21202002202222 is 22220220020212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 21202002202222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21202002202229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1939653 + ... + 6794575.

It is an arithmetic number, because the mean of its divisors is an integer number (3975378052347).

Almost surely, 2^{21202002202222} is an apocalyptic number.

21202002202222 is a deficient number, since it is larger than the sum of its proper divisors (10601022216554).

21202002202222 is a wasteful number, since it uses less digits than its factorization.

21202002202222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7038482.

The product of its (nonzero) digits is 512, while the sum is 19.

Adding to 21202002202222 its reverse (22220220020212), we get a palindrome (43422222222434).

The spelling of 21202002202222 in words is "twenty-one trillion, two hundred two billion, two million, two hundred two thousand, two hundred twenty-two".