111102020220400 has 120 divisors (see below), whose sum is σ = 291197866500864. Its totient is φ = 40399406611200.

The previous prime is 111102020220377. The next prime is 111102020220407. The reversal of 111102020220400 is 4022020201111.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111102020220407) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 138759609 + ... + 139557991.

Almost surely, 2^{111102020220400} is an apocalyptic number.

111102020220400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111102020220400 is an abundant number, since it is smaller than the sum of its proper divisors (180095846280464).

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

111102020220400 is a wasteful number, since it uses less digits than its factorization.

111102020220400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 830039 (or 830028 counting only the distinct ones).

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

Adding to 111102020220400 its reverse (4022020201111), we get a palindrome (115124040421511).

The spelling of 111102020220400 in words is "one hundred eleven trillion, one hundred two billion, twenty million, two hundred twenty thousand, four hundred".