10000120020000 has 360 divisors, whose sum is σ = 36055549818288. Its totient is φ = 2424269760000.

The previous prime is 10000120019993. The next prime is 10000120020013. The reversal of 10000120020000 is 2002100001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (6).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 6571287 + ... + 7948713.

Almost surely, 2^{10000120020000} is an apocalyptic number.

10000120020000 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 10000120020000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18027774909144).

10000120020000 is an abundant number, since it is smaller than the sum of its proper divisors (26055429798288).

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

10000120020000 is a wasteful number, since it uses less digits than its factorization.

10000120020000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1377482 (or 1377448 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 6.

Adding to 10000120020000 its reverse (2002100001), we get a palindrome (10002122120001).

The spelling of 10000120020000 in words is "ten trillion, one hundred twenty million, twenty thousand".