21332222311201 has 4 divisors (see below), whose sum is σ = 21332337770052. Its totient is φ = 21332106852352.

The previous prime is 21332222311093. The next prime is 21332222311237. The reversal of 21332222311201 is 10211322223312.

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

It can be written as a sum of positive squares in 2 ways, for example, as 15759431134225 + 5572791176976 = 3969815^2 + 2360676^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21332222311201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21332222341201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57451840 + ... + 57821953.

It is an arithmetic number, because the mean of its divisors is an integer number (5333084442513).

Almost surely, 2^{21332222311201} is an apocalyptic number.

It is an amenable number.

21332222311201 is a deficient number, since it is larger than the sum of its proper divisors (115458851).

21332222311201 is a wasteful number, since it uses less digits than its factorization.

21332222311201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115458850.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 21332222311201 its reverse (10211322223312), we get a palindrome (31543544534513).

The spelling of 21332222311201 in words is "twenty-one trillion, three hundred thirty-two billion, two hundred twenty-two million, three hundred eleven thousand, two hundred one".