21201112222202 has 8 divisors (see below), whose sum is σ = 34692729090912. Its totient is φ = 9636869191900.

The previous prime is 21201112222189. The next prime is 21201112222211. The reversal of 21201112222202 is 20222221110212.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 481843459574 + ... + 481843459617.

It is an arithmetic number, because the mean of its divisors is an integer number (4336591136364).

Almost surely, 2^{21201112222202} is an apocalyptic number.

21201112222202 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21201112222202 is a deficient number, since it is larger than the sum of its proper divisors (13491616868710).

21201112222202 is a wasteful number, since it uses less digits than its factorization.

21201112222202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 963686919204.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 21201112222202 its reverse (20222221110212), we get a palindrome (41423333332414).

The spelling of 21201112222202 in words is "twenty-one trillion, two hundred one billion, one hundred twelve million, two hundred twenty-two thousand, two hundred two".