111012202221020 has 24 divisors (see below), whose sum is σ = 233413789870800. Its totient is φ = 44349992277632.

The previous prime is 111012202220971. The next prime is 111012202221047. The reversal of 111012202221020 is 20122202210111.

It is a self number, because there is not a number n which added to its sum of digits gives 111012202221020.

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, 3430521590 + ... + 3430553949.

It is an arithmetic number, because the mean of its divisors is an integer number (9725574577950).

Almost surely, 2^{111012202221020} is an apocalyptic number.

111012202221020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111012202221020 is an abundant number, since it is smaller than the sum of its proper divisors (122401587649780).

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

111012202221020 is a wasteful number, since it uses less digits than its factorization.

111012202221020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6861076357 (or 6861076355 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 111012202221020 its reverse (20122202210111), we get a palindrome (131134404431131).

The spelling of 111012202221020 in words is "one hundred eleven trillion, twelve billion, two hundred two million, two hundred twenty-one thousand, twenty".