21402314214 has 16 divisors (see below), whose sum is σ = 42854819952. Its totient is φ = 7125739488.

The previous prime is 21402314209. The next prime is 21402314231. The reversal of 21402314214 is 41241320412.

It is a congruent number.

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, 2085769 + ... + 2096004.

It is an arithmetic number, because the mean of its divisors is an integer number (2678426247).

Almost surely, 2^21402314214 is an apocalyptic number.

21402314214 is an abundant number, since it is smaller than the sum of its proper divisors (21452505738).

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

21402314214 is a wasteful number, since it uses less digits than its factorization.

21402314214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4182631.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 21402314214 its reverse (41241320412), we get a palindrome (62643634626).

The spelling of 21402314214 in words is "twenty-one billion, four hundred two million, three hundred fourteen thousand, two hundred fourteen".