12000010111020 has 36 divisors (see below), whose sum is σ = 36400030670640. Its totient is φ = 3200002696224.

The previous prime is 12000010111003. The next prime is 12000010111021. The reversal of 12000010111020 is 2011101000021.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 12000010110993 and 12000010111011.

It is not an unprimeable number, because it can be changed into a prime (12000010111021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33333361240 + ... + 33333361599.

Almost surely, 2^{12000010111020} is an apocalyptic number.

12000010111020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12000010111020 is an abundant number, since it is smaller than the sum of its proper divisors (24400020559620).

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

12000010111020 is a wasteful number, since it uses less digits than its factorization.

12000010111020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66666722854 (or 66666722849 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 12000010111020 its reverse (2011101000021), we get a palindrome (14011111111041).

The spelling of 12000010111020 in words is "twelve trillion, ten million, one hundred eleven thousand, twenty".