21222003153622 has 8 divisors (see below), whose sum is σ = 31918347907776. Its totient is φ = 10582553851032.

The previous prime is 21222003153551. The next prime is 21222003153667. The reversal of 21222003153622 is 22635130022212.

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

It is a super-2 number, since 2×21222003153622² (a number of 27 digits) contains 22 as substring.

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, 14223861958 + ... + 14223863449.

It is an arithmetic number, because the mean of its divisors is an integer number (3989793488472).

Almost surely, 2^{21222003153622} is an apocalyptic number.

21222003153622 is a deficient number, since it is larger than the sum of its proper divisors (10696344754154).

21222003153622 is a wasteful number, since it uses less digits than its factorization.

21222003153622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28447725782.

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 21222003153622 its reverse (22635130022212), we get a palindrome (43857133175834).

The spelling of 21222003153622 in words is "twenty-one trillion, two hundred twenty-two billion, three million, one hundred fifty-three thousand, six hundred twenty-two".