10002001121200 has 120 divisors (see below), whose sum is σ = 26215996354560. Its totient is φ = 3636860908800.

The previous prime is 10002001121143. The next prime is 10002001121239. The reversal of 10002001121200 is 212110020001.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 79343821 + ... + 79469779.

It is an arithmetic number, because the mean of its divisors is an integer number (218466636288).

Almost surely, 2^{10002001121200} is an apocalyptic number.

10002001121200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10002001121200 is an abundant number, since it is smaller than the sum of its proper divisors (16213995233360).

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

10002001121200 is a wasteful number, since it uses less digits than its factorization.

10002001121200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144035 (or 144024 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 10002001121200 its reverse (212110020001), we get a palindrome (10214111141201).

The spelling of 10002001121200 in words is "ten trillion, two billion, one million, one hundred twenty-one thousand, two hundred".