10120012001000 has 128 divisors (see below), whose sum is σ = 26463720366720. Its totient is φ = 3590248000000.

The previous prime is 10120012000999. The next prime is 10120012001017. The reversal of 10120012001000 is 10021002101.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10768526 + ... + 11670525.

It is an arithmetic number, because the mean of its divisors is an integer number (206747815365).

Almost surely, 2^{10120012001000} is an apocalyptic number.

10120012001000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10120012001000 is an abundant number, since it is smaller than the sum of its proper divisors (16343708365720).

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

10120012001000 is a wasteful number, since it uses less digits than its factorization.

10120012001000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22439124 (or 22439110 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 10120012001000 its reverse (10021002101), we get a palindrome (10130033003101).

The spelling of 10120012001000 in words is "ten trillion, one hundred twenty billion, twelve million, one thousand".