20111021002222 has 8 divisors (see below), whose sum is σ = 30166584907536. Its totient is φ = 10055492699712.

The previous prime is 20111021002207. The next prime is 20111021002271. The reversal of 20111021002222 is 22220012011102.

It is a happy number.

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 = 20111021002196 and 20111021002205.

It is a congruent number.

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, 7440618 + ... + 9776749.

It is an arithmetic number, because the mean of its divisors is an integer number (3770823113442).

Almost surely, 2^{20111021002222} is an apocalyptic number.

20111021002222 is a deficient number, since it is larger than the sum of its proper divisors (10055563905314).

20111021002222 is a wasteful number, since it uses less digits than its factorization.

20111021002222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17801402.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20111021002222 its reverse (22220012011102), we get a palindrome (42331033013324).

The spelling of 20111021002222 in words is "twenty trillion, one hundred eleven billion, twenty-one million, two thousand, two hundred twenty-two".