1010111112220 has 48 divisors (see below), whose sum is σ = 2424418008768. Its totient is φ = 346302190080.

The previous prime is 1010111112191. The next prime is 1010111112229. The reversal of 1010111112220 is 222111110101.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1010111112220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1010111112229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2111730 + ... + 2545510.

It is an arithmetic number, because the mean of its divisors is an integer number (50508708516).

Almost surely, 2^{1010111112220} is an apocalyptic number.

1010111112220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1010111112220 is an abundant number, since it is smaller than the sum of its proper divisors (1414306896548).

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

1010111112220 is a wasteful number, since it uses less digits than its factorization.

1010111112220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450430 (or 450428 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1010111112220 its reverse (222111110101), we get a palindrome (1232222222321).

The spelling of 1010111112220 in words is "one trillion, ten billion, one hundred eleven million, one hundred twelve thousand, two hundred twenty".