21332211122 has 4 divisors (see below), whose sum is σ = 31998316686. Its totient is φ = 10666105560.

The previous prime is 21332211091. The next prime is 21332211161. The reversal of 21332211122 is 22111223312.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 16620624241 + 4711586881 = 128921^2 + 68641^2 .

It is a junction number, because it is equal to n+sod(n) for n = 21332211094 and 21332211103.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5333052779 + ... + 5333052782.

Almost surely, 2^21332211122 is an apocalyptic number.

21332211122 is a deficient number, since it is larger than the sum of its proper divisors (10666105564).

21332211122 is a wasteful number, since it uses less digits than its factorization.

21332211122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10666105563.

The product of its digits is 288, while the sum is 20.

Adding to 21332211122 its reverse (22111223312), we get a palindrome (43443434434).

The spelling of 21332211122 in words is "twenty-one billion, three hundred thirty-two million, two hundred eleven thousand, one hundred twenty-two".