120011111200 has 72 divisors (see below), whose sum is σ = 305715307968. Its totient is φ = 45917287680.

The previous prime is 120011111189. The next prime is 120011111201. The reversal of 120011111200 is 2111110021.

It is a super-2 number, since 2×120011111200² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (120011111201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3242772 + ... + 3279571.

It is an arithmetic number, because the mean of its divisors is an integer number (4246045944).

Almost surely, 2^120011111200 is an apocalyptic number.

120011111200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120011111200 is an abundant number, since it is smaller than the sum of its proper divisors (185704196768).

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

120011111200 is a wasteful number, since it uses less digits than its factorization.

120011111200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6522386 (or 6522373 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 120011111200 its reverse (2111110021), we get a palindrome (122122221221).

The spelling of 120011111200 in words is "one hundred twenty billion, eleven million, one hundred eleven thousand, two hundred".