21333231122 has 32 divisors (see below), whose sum is σ = 39391334400. Its totient is φ = 8460175248.

The previous prime is 21333231119. The next prime is 21333231163. The reversal of 21333231122 is 22113233312.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 921122 + ... + 943997.

It is an arithmetic number, because the mean of its divisors is an integer number (1230979200).

Almost surely, 2^21333231122 is an apocalyptic number.

21333231122 is a deficient number, since it is larger than the sum of its proper divisors (18058103278).

21333231122 is a wasteful number, since it uses less digits than its factorization.

21333231122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1865190.

The product of its digits is 1296, while the sum is 23.

Adding to 21333231122 its reverse (22113233312), we get a palindrome (43446464434).

The spelling of 21333231122 in words is "twenty-one billion, three hundred thirty-three million, two hundred thirty-one thousand, one hundred twenty-two".