21414401412 has 24 divisors (see below), whose sum is σ = 49989928800. Its totient is φ = 7134849216.

The previous prime is 21414401399. The next prime is 21414401453. The reversal of 21414401412 is 21410441412.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 383337 + ... + 435632.

It is an arithmetic number, because the mean of its divisors is an integer number (2082913700).

Almost surely, 2^21414401412 is an apocalyptic number.

It is an amenable number.

21414401412 is an abundant number, since it is smaller than the sum of its proper divisors (28575527388).

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

21414401412 is a wasteful number, since it uses less digits than its factorization.

21414401412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 821155 (or 821153 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

Adding to 21414401412 its reverse (21410441412), we get a palindrome (42824842824).

The spelling of 21414401412 in words is "twenty-one billion, four hundred fourteen million, four hundred one thousand, four hundred twelve".