10111001220222 has 96 divisors (see below), whose sum is σ = 23849163486720. Its totient is φ = 2848955840640.

The previous prime is 10111001220209. The next prime is 10111001220233. The reversal of 10111001220222 is 22202210011101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19650697 + ... + 20158667.

It is an arithmetic number, because the mean of its divisors is an integer number (248428786320).

Almost surely, 2^{10111001220222} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10111001220222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11924581743360).

10111001220222 is an abundant number, since it is smaller than the sum of its proper divisors (13738162266498).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10111001220222 is a wasteful number, since it uses less digits than its factorization.

10111001220222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508926 (or 508919 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 10111001220222 its reverse (22202210011101), we get a palindrome (32313211231323).

It can be divided in two parts, 1011100 and 1220222, that added together give a palindrome (2231322).

The spelling of 10111001220222 in words is "ten trillion, one hundred eleven billion, one million, two hundred twenty thousand, two hundred twenty-two".