21201102101222 has 8 divisors (see below), whose sum is σ = 31919002426272. Its totient is φ = 10561434625800.

The previous prime is 21201102101149. The next prime is 21201102101237. The reversal of 21201102101222 is 22210120110212.

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 21201102101222.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 19558211729 + ... + 19558212812.

It is an arithmetic number, because the mean of its divisors is an integer number (3989875303284).

Almost surely, 2^{21201102101222} is an apocalyptic number.

21201102101222 is a deficient number, since it is larger than the sum of its proper divisors (10717900325050).

21201102101222 is a wasteful number, since it uses less digits than its factorization.

21201102101222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39116424814.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 21201102101222 its reverse (22210120110212), we get a palindrome (43411222211434).

The spelling of 21201102101222 in words is "twenty-one trillion, two hundred one billion, one hundred two million, one hundred one thousand, two hundred twenty-two".