21312233001101 has 16 divisors (see below), whose sum is σ = 24924731639808. Its totient is φ = 17841757474800.

The previous prime is 21312233001091. The next prime is 21312233001109. The reversal of 21312233001101 is 10110033221312.

It is a happy number.

It is not a de Polignac number, because 21312233001101 - 2¹⁴ = 21312232984717 is a prime.

It is a super-2 number, since 2×21312233001101² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21312233001109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3115136 + ... + 7233846.

It is an arithmetic number, because the mean of its divisors is an integer number (1557795727488).

Almost surely, 2^{21312233001101} is an apocalyptic number.

It is an amenable number.

21312233001101 is a deficient number, since it is larger than the sum of its proper divisors (3612498638707).

21312233001101 is a wasteful number, since it uses less digits than its factorization.

21312233001101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4135952.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 21312233001101 its reverse (10110033221312), we get a palindrome (31422266222413).

The spelling of 21312233001101 in words is "twenty-one trillion, three hundred twelve billion, two hundred thirty-three million, one thousand, one hundred one".