12010421000 has 64 divisors (see below), whose sum is σ = 28211863680. Its totient is φ = 4785796800.

The previous prime is 12010420979. The next prime is 12010421009. The reversal of 12010421000 is 12401021.

It is not an unprimeable number, because it can be changed into a prime (12010421009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 240167 + ... + 285833.

It is an arithmetic number, because the mean of its divisors is an integer number (440810370).

Almost surely, 2^12010421000 is an apocalyptic number.

12010421000 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 12010421000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14105931840).

12010421000 is an abundant number, since it is smaller than the sum of its proper divisors (16201442680).

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

12010421000 is a wasteful number, since it uses less digits than its factorization.

12010421000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45951 (or 45937 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 12010421000 its reverse (12401021), we get a palindrome (12022822021).

The spelling of 12010421000 in words is "twelve billion, ten million, four hundred twenty-one thousand".