21411011412 has 72 divisors (see below), whose sum is σ = 62466523392. Its totient is φ = 6056856000.

The previous prime is 21411011399. The next prime is 21411011417.

21411011412 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21411011417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 395164 + ... + 446067.

Almost surely, 2^21411011412 is an apocalyptic number.

It is an amenable number.

21411011412 is an abundant number, since it is smaller than the sum of its proper divisors (41055511980).

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

21411011412 is a wasteful number, since it uses less digits than its factorization.

21411011412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 841349 (or 841344 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

It can be divided in two parts, 214110 and 11412, that added together give a palindrome (225522).

The spelling of 21411011412 in words is "twenty-one billion, four hundred eleven million, eleven thousand, four hundred twelve".