21133631222 has 8 divisors (see below), whose sum is σ = 34582305672. Its totient is φ = 9606196000.

The previous prime is 21133631203. The next prime is 21133631237. The reversal of 21133631222 is 22213633112.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 21133631191 and 21133631200.

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, 480309779 + ... + 480309822.

It is an arithmetic number, because the mean of its divisors is an integer number (4322788209).

Almost surely, 2^21133631222 is an apocalyptic number.

21133631222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21133631222 is a deficient number, since it is larger than the sum of its proper divisors (13448674450).

21133631222 is a wasteful number, since it uses less digits than its factorization.

21133631222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 960619614.

The product of its digits is 2592, while the sum is 26.

The spelling of 21133631222 in words is "twenty-one billion, one hundred thirty-three million, six hundred thirty-one thousand, two hundred twenty-two".