21133203212233 has 8 divisors (see below), whose sum is σ = 25202329296768. Its totient is φ = 17326601391264.

The previous prime is 21133203212179. The next prime is 21133203212287. The reversal of 21133203212233 is 33221230233112.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (21133203212179) and next prime (21133203212287).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21133203212233 - 2¹³ = 21133203204041 is a prime.

It is a super-2 number, since 2×21133203212233² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21133203210233) 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, 65631065716 + ... + 65631066037.

It is an arithmetic number, because the mean of its divisors is an integer number (3150291162096).

Almost surely, 2^{21133203212233} is an apocalyptic number.

21133203212233 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

21133203212233 is a deficient number, since it is larger than the sum of its proper divisors (4069126084535).

21133203212233 is a wasteful number, since it uses less digits than its factorization.

21133203212233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131262131783.

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 21133203212233 its reverse (33221230233112), we get a palindrome (54354433445345).

The spelling of 21133203212233 in words is "twenty-one trillion, one hundred thirty-three billion, two hundred three million, two hundred twelve thousand, two hundred thirty-three".