120100021212200 has 96 divisors (see below), whose sum is σ = 290969736175800. Its totient is φ = 46044890787840.

The previous prime is 120100021212191. The next prime is 120100021212251. The reversal of 120100021212200 is 2212120001021.

It can be written as a sum of positive squares in 12 ways, for example, as 119413095844 + 119980608116356 = 345562^2 + 10953566^2 .

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 23 ways as a sum of consecutive naturals, for example, 74778029 + ... + 76367228.

Almost surely, 2^{120100021212200} is an apocalyptic number.

120100021212200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120100021212200 is an abundant number, since it is smaller than the sum of its proper divisors (170869714963600).

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

120100021212200 is a wasteful number, since it uses less digits than its factorization.

120100021212200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151145439 (or 151145430 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 120100021212200 its reverse (2212120001021), we get a palindrome (122312141213221).

The spelling of 120100021212200 in words is "one hundred twenty trillion, one hundred billion, twenty-one million, two hundred twelve thousand, two hundred".