1200010120 has 32 divisors (see below), whose sum is σ = 2701828800. Its totient is φ = 479683008.

The previous prime is 1200010069. The next prime is 1200010129. The reversal of 1200010120 is 210100021.

It is not an unprimeable number, because it can be changed into a prime (1200010129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55861 + ... + 74299.

It is an arithmetic number, because the mean of its divisors is an integer number (84432150).

Almost surely, 2^1200010120 is an apocalyptic number.

1200010120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1200010120 is an abundant number, since it is smaller than the sum of its proper divisors (1501818680).

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

1200010120 is a wasteful number, since it uses less digits than its factorization.

1200010120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20077 (or 20073 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 7.

The square root of 1200010120 is about 34641.1622206877. The cubic root of 1200010120 is about 1062.6615564255.

Adding to 1200010120 its reverse (210100021), we get a palindrome (1410110141).

The spelling of 1200010120 in words is "one billion, two hundred million, ten thousand, one hundred twenty".