120112021102100 has 18 divisors (see below), whose sum is σ = 260643085791774. Its totient is φ = 48044808440800.

The previous prime is 120112021102079. The next prime is 120112021102109. The reversal of 120112021102100 is 1201120211021.

It can be written as a sum of positive squares in 3 ways, for example, as 11540872718596 + 108571148383504 = 3397186^2 + 10419748^2 .

It is a super-2 number, since 2×120112021102100² (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 (120112021102109) 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, 600560105411 + ... + 600560105610.

Almost surely, 2^{120112021102100} is an apocalyptic number.

120112021102100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120112021102100 is an abundant number, since it is smaller than the sum of its proper divisors (140531064689674).

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

120112021102100 is a wasteful number, since it uses less digits than its factorization.

120112021102100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1201120211035 (or 1201120211028 counting only the distinct ones).

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

Adding to 120112021102100 its reverse (1201120211021), we get a palindrome (121313141313121).

120112021102100 divided by its reverse (1201120211021) gives a square (100 = 10²).

The spelling of 120112021102100 in words is "one hundred twenty trillion, one hundred twelve billion, twenty-one million, one hundred two thousand, one hundred".