21222221001122 has 8 divisors (see below), whose sum is σ = 31833361099200. Its totient is φ = 10611100634724.

The previous prime is 21222221001101. The next prime is 21222221001173. The reversal of 21222221001122 is 22110012222212.

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

It is a junction number, because it is equal to n+sod(n) for n = 21222221001094 and 21222221001103.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1861622 + ... + 6775697.

It is an arithmetic number, because the mean of its divisors is an integer number (3979170137400).

Almost surely, 2^{21222221001122} is an apocalyptic number.

21222221001122 is a deficient number, since it is larger than the sum of its proper divisors (10611140098078).

21222221001122 is a wasteful number, since it uses less digits than its factorization.

21222221001122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9865840.

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

Adding to 21222221001122 its reverse (22110012222212), we get a palindrome (43332233223334).

The spelling of 21222221001122 in words is "twenty-one trillion, two hundred twenty-two billion, two hundred twenty-one million, one thousand, one hundred twenty-two".