21333212321132 has 24 divisors (see below), whose sum is σ = 39020479282176. Its totient is φ = 10186032014928.

The previous prime is 21333212321131. The next prime is 21333212321137. The reversal of 21333212321132 is 23112321233312.

It is a super-2 number, since 2×21333212321132² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21333212321095 and 21333212321104.

It is not an unprimeable number, because it can be changed into a prime (21333212321131) 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, 190951358 + ... + 191063045.

It is an arithmetic number, because the mean of its divisors is an integer number (1625853303424).

Almost surely, 2^{21333212321132} is an apocalyptic number.

It is an amenable number.

21333212321132 is a deficient number, since it is larger than the sum of its proper divisors (17687266961044).

21333212321132 is a wasteful number, since it uses less digits than its factorization.

21333212321132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382015037 (or 382015035 counting only the distinct ones).

The product of its digits is 7776, while the sum is 29.

Adding to 21333212321132 its reverse (23112321233312), we get a palindrome (44445533554444).

The spelling of 21333212321132 in words is "twenty-one trillion, three hundred thirty-three billion, two hundred twelve million, three hundred twenty-one thousand, one hundred thirty-two".