21422223332 has 12 divisors (see below), whose sum is σ = 38403254316. Its totient is φ = 10449864960.

The previous prime is 21422223313. The next prime is 21422223337. The reversal of 21422223332 is 23332222412.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 12377452516 + 9044770816 = 111254^2 + 95104^2 .

It is a super-3 number, since 3×21422223332³ (a number of 32 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (21422223337) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65311493 + ... + 65311820.

It is an arithmetic number, because the mean of its divisors is an integer number (3200271193).

Almost surely, 2^21422223332 is an apocalyptic number.

It is an amenable number.

21422223332 is a deficient number, since it is larger than the sum of its proper divisors (16981030984).

21422223332 is a wasteful number, since it uses less digits than its factorization.

21422223332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130623358 (or 130623356 counting only the distinct ones).

The product of its digits is 6912, while the sum is 26.

Adding to 21422223332 its reverse (23332222412), we get a palindrome (44754445744).

The spelling of 21422223332 in words is "twenty-one billion, four hundred twenty-two million, two hundred twenty-three thousand, three hundred thirty-two".