21000433400012 has 48 divisors (see below), whose sum is σ = 40339907362944. Its totient is φ = 9486569664000.

The previous prime is 21000433399987. The next prime is 21000433400021.

21000433400012 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 150621212 + ... + 150760572.

It is an arithmetic number, because the mean of its divisors is an integer number (840414736728).

Almost surely, 2^{21000433400012} is an apocalyptic number.

21000433400012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21000433400012 is a deficient number, since it is larger than the sum of its proper divisors (19339473962932).

21000433400012 is a wasteful number, since it uses less digits than its factorization.

21000433400012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160550 (or 160548 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

It can be divided in two parts, 2100043 and 3400012, that added together give a palindrome (5500055).

The spelling of 21000433400012 in words is "twenty-one trillion, four hundred thirty-three million, four hundred thousand, twelve".