120011121111100 has 18 divisors (see below), whose sum is σ = 260424132811304. Its totient is φ = 48004448444400.

The previous prime is 120011121111053. The next prime is 120011121111103. The reversal of 120011121111100 is 1111121110021.

It is a super-2 number, since 2×120011121111100² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120011121111103) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 600055605456 + ... + 600055605655.

Almost surely, 2^{120011121111100} is an apocalyptic number.

120011121111100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120011121111100 is an abundant number, since it is smaller than the sum of its proper divisors (140413011700204).

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

120011121111100 is a wasteful number, since it uses less digits than its factorization.

120011121111100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1200111211125 (or 1200111211118 counting only the distinct ones).

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

Adding to 120011121111100 its reverse (1111121110021), we get a palindrome (121122242221121).

The spelling of 120011121111100 in words is "one hundred twenty trillion, eleven billion, one hundred twenty-one million, one hundred eleven thousand, one hundred".