21142214222 has 8 divisors (see below), whose sum is σ = 31720078656. Its totient is φ = 10568854672.

The previous prime is 21142214221. The next prime is 21142214251. The reversal of 21142214222 is 22241224112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21142214221) 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 3 ways as a sum of consecutive naturals, for example, 1114463 + ... + 1133274.

It is an arithmetic number, because the mean of its divisors is an integer number (3965009832).

Almost surely, 2^21142214222 is an apocalyptic number.

21142214222 is a deficient number, since it is larger than the sum of its proper divisors (10577864434).

21142214222 is a wasteful number, since it uses less digits than its factorization.

21142214222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2252442.

The product of its digits is 1024, while the sum is 23.

Adding to 21142214222 its reverse (22241224112), we get a palindrome (43383438334).

The spelling of 21142214222 in words is "twenty-one billion, one hundred forty-two million, two hundred fourteen thousand, two hundred twenty-two".