111102120221000 has 128 divisors (see below), whose sum is σ = 260185534408800. Its totient is φ = 44405552563200.

The previous prime is 111102120220963. The next prime is 111102120221023. The reversal of 111102120221000 is 122021201111.

It can be written as a sum of positive squares in 16 ways, for example, as 79819822429636 + 31282297791364 = 8934194^2 + 5593058^2 .

It is a super-2 number, since 2×111102120221000² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7594641686 + ... + 7594656314.

Almost surely, 2^{111102120221000} is an apocalyptic number.

111102120221000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111102120221000 is an abundant number, since it is smaller than the sum of its proper divisors (149083414187800).

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

111102120221000 is a wasteful number, since it uses less digits than its factorization.

111102120221000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20164 (or 20150 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 111102120221000 its reverse (122021201111), we get a palindrome (111224141422111).

The spelling of 111102120221000 in words is "one hundred eleven trillion, one hundred two billion, one hundred twenty million, two hundred twenty-one thousand".