21220122102226 has 8 divisors (see below), whose sum is σ = 31830361228800. Its totient is φ = 10610001692628.

The previous prime is 21220122102173. The next prime is 21220122102227. The reversal of 21220122102226 is 62220122102212.

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 21220122102226.

It is not an unprimeable number, because it can be changed into a prime (21220122102227) 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, 29231026 + ... + 29948173.

It is an arithmetic number, because the mean of its divisors is an integer number (3978795153600).

Almost surely, 2^{21220122102226} is an apocalyptic number.

21220122102226 is a deficient number, since it is larger than the sum of its proper divisors (10610239126574).

21220122102226 is a wasteful number, since it uses less digits than its factorization.

21220122102226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59358488.

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 21220122102226 its reverse (62220122102212), we get a palindrome (83440244204438).

The spelling of 21220122102226 in words is "twenty-one trillion, two hundred twenty billion, one hundred twenty-two million, one hundred two thousand, two hundred twenty-six".