10020001121200 has 180 divisors, whose sum is σ = 28107463462560. Its totient is φ = 3422656043520.

The previous prime is 10020001121183. The next prime is 10020001121231. The reversal of 10020001121200 is 212110002001.

10020001121200 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 35 ways as a sum of consecutive naturals, for example, 4322169 + ... + 6222631.

It is an arithmetic number, because the mean of its divisors is an integer number (156152574792).

Almost surely, 2^{10020001121200} is an apocalyptic number.

10020001121200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10020001121200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14053731731280).

10020001121200 is an abundant number, since it is smaller than the sum of its proper divisors (18087462341360).

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

10020001121200 is a wasteful number, since it uses less digits than its factorization.

10020001121200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1900764 (or 1900746 counting only the distinct ones).

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

Adding to 10020001121200 its reverse (212110002001), we get a palindrome (10232111123201).

The spelling of 10020001121200 in words is "ten trillion, twenty billion, one million, one hundred twenty-one thousand, two hundred".