21111120322 has 8 divisors (see below), whose sum is σ = 31703633676. Its totient is φ = 10543242432.

The previous prime is 21111120307. The next prime is 21111120361. The reversal of 21111120322 is 22302111112.

It can be written as a sum of positive squares in 2 ways, for example, as 20543775561 + 567344761 = 143331^2 + 23819^2 .

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

It is a super-2 number, since 2×21111120322² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21111120296 and 21111120305.

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, 6156723 + ... + 6160150.

Almost surely, 2^21111120322 is an apocalyptic number.

21111120322 is a deficient number, since it is larger than the sum of its proper divisors (10592513354).

21111120322 is a wasteful number, since it uses less digits than its factorization.

21111120322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12317732.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 21111120322 its reverse (22302111112), we get a palindrome (43413231434).

The spelling of 21111120322 in words is "twenty-one billion, one hundred eleven million, one hundred twenty thousand, three hundred twenty-two".