21401010412 has 12 divisors (see below), whose sum is σ = 37453038280. Its totient is φ = 10700142336.

The previous prime is 21401010403. The next prime is 21401010413.

It is a happy number.

21401010412 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (21401010413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76039 + ... + 220417.

Almost surely, 2^21401010412 is an apocalyptic number.

It is an amenable number.

21401010412 is a deficient number, since it is larger than the sum of its proper divisors (16052027868).

21401010412 is a wasteful number, since it uses less digits than its factorization.

21401010412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181440 (or 181438 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

It can be divided in two parts, 214010 and 10412, that added together give a palindrome (224422).

The spelling of 21401010412 in words is "twenty-one billion, four hundred one million, ten thousand, four hundred twelve".