21311201223332 has 12 divisors (see below), whose sum is σ = 37294737973836. Its totient is φ = 10655561802240.

The previous prime is 21311201223307. The next prime is 21311201223353. The reversal of 21311201223332 is 23332210211312.

It can be written as a sum of positive squares in 2 ways, for example, as 12415024062016 + 8896177161316 = 3523496^2 + 2982646^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8448833 + ... + 10677320.

It is an arithmetic number, because the mean of its divisors is an integer number (3107894831153).

Almost surely, 2^{21311201223332} is an apocalyptic number.

It is an amenable number.

21311201223332 is a deficient number, since it is larger than the sum of its proper divisors (15983536750504).

21311201223332 is a wasteful number, since it uses less digits than its factorization.

21311201223332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19404718 (or 19404716 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 21311201223332 its reverse (23332210211312), we get a palindrome (44643411434644).

The spelling of 21311201223332 in words is "twenty-one trillion, three hundred eleven billion, two hundred one million, two hundred twenty-three thousand, three hundred thirty-two".