20102221222222 has 16 divisors (see below), whose sum is σ = 30181137211440. Its totient is φ = 10041846395328.

The previous prime is 20102221222217. The next prime is 20102221222247. The reversal of 20102221222222 is 22222212220102.

It is a junction number, because it is equal to n+sod(n) for n = 20102221222193 and 20102221222202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8435029 + ... + 10552447.

It is an arithmetic number, because the mean of its divisors is an integer number (1886321075715).

Almost surely, 2^{20102221222222} is an apocalyptic number.

20102221222222 is a deficient number, since it is larger than the sum of its proper divisors (10078915989218).

20102221222222 is a wasteful number, since it uses less digits than its factorization.

20102221222222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2121795.

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 20102221222222 its reverse (22222212220102), we get a palindrome (42324433442324).

The spelling of 20102221222222 in words is "twenty trillion, one hundred two billion, two hundred twenty-one million, two hundred twenty-two thousand, two hundred twenty-two".