120111111121000 has 64 divisors (see below), whose sum is σ = 281073514110480. Its totient is φ = 48042134348800.

The previous prime is 120111111120977. The next prime is 120111111121007. The reversal of 120111111121000 is 121111111021.

It can be written as a sum of positive squares in 8 ways, for example, as 1170667736676 + 118940443384324 = 1081974^2 + 10905982^2 .

It is a super-3 number, since 3×120111111121000³ (a number of 43 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (120111111121007) 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, 17995812 + ... + 23750188.

Almost surely, 2^{120111111121000} is an apocalyptic number.

120111111121000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120111111121000 is an abundant number, since it is smaller than the sum of its proper divisors (160962402989480).

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

120111111121000 is a wasteful number, since it uses less digits than its factorization.

120111111121000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5775271 (or 5775257 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 120111111121000 its reverse (121111111021), we get a palindrome (120232222232021).

The spelling of 120111111121000 in words is "one hundred twenty trillion, one hundred eleven billion, one hundred eleven million, one hundred twenty-one thousand".