21222012232303 has 8 divisors (see below), whose sum is σ = 21232065381120. Its totient is φ = 21211959536160.

The previous prime is 21222012232297. The next prime is 21222012232339. The reversal of 21222012232303 is 30323221022212.

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 21222012232303 - 2²⁹ = 21221475361391 is a prime.

It is a super-2 number, since 2×21222012232303² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21222015232303) 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, 127111026 + ... + 127277872.

It is an arithmetic number, because the mean of its divisors is an integer number (2654008172640).

Almost surely, 2^{21222012232303} is an apocalyptic number.

21222012232303 is a deficient number, since it is larger than the sum of its proper divisors (10053148817).

21222012232303 is a wasteful number, since it uses less digits than its factorization.

21222012232303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226337.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 21222012232303 its reverse (30323221022212), we get a palindrome (51545233254515).

The spelling of 21222012232303 in words is "twenty-one trillion, two hundred twenty-two billion, twelve million, two hundred thirty-two thousand, three hundred three".