21220010014 has 16 divisors (see below), whose sum is σ = 36379081728. Its totient is φ = 9093809592.

The previous prime is 21220009973. The next prime is 21220010023. The reversal of 21220010014 is 41001002212.

It is a happy number.

21220010014 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 21220009976 and 21220010003.

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, 405159 + ... + 454525.

It is an arithmetic number, because the mean of its divisors is an integer number (2273692608).

Almost surely, 2^21220010014 is an apocalyptic number.

21220010014 is a deficient number, since it is larger than the sum of its proper divisors (15159071714).

21220010014 is a wasteful number, since it uses less digits than its factorization.

21220010014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80079.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 21220010014 its reverse (41001002212), we get a palindrome (62221012226).

The spelling of 21220010014 in words is "twenty-one billion, two hundred twenty million, ten thousand, fourteen".