1110221100020 has 48 divisors (see below), whose sum is σ = 2371201620480. Its totient is φ = 436520832384.

The previous prime is 1110221099989. The next prime is 1110221100029. The reversal of 1110221100020 is 200011220111.

It is a junction number, because it is equal to n+sod(n) for n = 1110221099974 and 1110221100010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1110221100029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14732477 + ... + 14807643.

It is an arithmetic number, because the mean of its divisors is an integer number (49400033760).

Almost surely, 2^{1110221100020} is an apocalyptic number.

1110221100020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1110221100020 is an abundant number, since it is smaller than the sum of its proper divisors (1260980520460).

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

1110221100020 is a wasteful number, since it uses less digits than its factorization.

1110221100020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87752 (or 87750 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1110221100020 its reverse (200011220111), we get a palindrome (1310232320131).

The spelling of 1110221100020 in words is "one trillion, one hundred ten billion, two hundred twenty-one million, one hundred thousand, twenty".