21222114014 has 4 divisors (see below), whose sum is σ = 31833171024. Its totient is φ = 10611057006.

The previous prime is 21222113987. The next prime is 21222114019. The reversal of 21222114014 is 41041122212.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21222114019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5305528502 + ... + 5305528505.

It is an arithmetic number, because the mean of its divisors is an integer number (7958292756).

Almost surely, 2^21222114014 is an apocalyptic number.

21222114014 is a deficient number, since it is larger than the sum of its proper divisors (10611057010).

21222114014 is a wasteful number, since it uses less digits than its factorization.

21222114014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10611057009.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 21222114014 its reverse (41041122212), we get a palindrome (62263236226).

The spelling of 21222114014 in words is "twenty-one billion, two hundred twenty-two million, one hundred fourteen thousand, fourteen".