21152334441322 has 16 divisors (see below), whose sum is σ = 36261626981760. Its totient is φ = 9065165632848.

The previous prime is 21152334441317. The next prime is 21152334441323. The reversal of 21152334441322 is 22314443325112.

It is a super-2 number, since 2×21152334441322² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21152334441323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8951913 + ... + 11065324.

It is an arithmetic number, because the mean of its divisors is an integer number (2266351686360).

Almost surely, 2^{21152334441322} is an apocalyptic number.

21152334441322 is a deficient number, since it is larger than the sum of its proper divisors (15109292540438).

21152334441322 is a wasteful number, since it uses less digits than its factorization.

21152334441322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20092725.

The product of its digits is 138240, while the sum is 37.

Adding to 21152334441322 its reverse (22314443325112), we get a palindrome (43466777766434).

The spelling of 21152334441322 in words is "twenty-one trillion, one hundred fifty-two billion, three hundred thirty-four million, four hundred forty-one thousand, three hundred twenty-two".