21222413006 has 8 divisors (see below), whose sum is σ = 31835097840. Its totient is φ = 10610713728.

The previous prime is 21222412979. The next prime is 21222413059. The reversal of 21222413006 is 60031422212.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 189971 + ... + 280238.

It is an arithmetic number, because the mean of its divisors is an integer number (3979387230).

Almost surely, 2^21222413006 is an apocalyptic number.

21222413006 is a deficient number, since it is larger than the sum of its proper divisors (10612684834).

21222413006 is a wasteful number, since it uses less digits than its factorization.

21222413006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492778.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 21222413006 its reverse (60031422212), we get a palindrome (81253835218).

The spelling of 21222413006 in words is "twenty-one billion, two hundred twenty-two million, four hundred thirteen thousand, six".