21422333233223 has 16 divisors (see below), whose sum is σ = 23329933774560. Its totient is φ = 19551846572544.

The previous prime is 21422333233211. The next prime is 21422333233229. The reversal of 21422333233223 is 32233233322412.

It is not a de Polignac number, because 21422333233223 - 2¹² = 21422333229127 is a prime.

It is a super-2 number, since 2×21422333233223² (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 (21422333233229) 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, 60175115 + ... + 60530067.

It is an arithmetic number, because the mean of its divisors is an integer number (1458120860910).

Almost surely, 2^{21422333233223} is an apocalyptic number.

21422333233223 is a deficient number, since it is larger than the sum of its proper divisors (1907600541337).

21422333233223 is a wasteful number, since it uses less digits than its factorization.

21422333233223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407218.

The product of its digits is 186624, while the sum is 35.

Adding to 21422333233223 its reverse (32233233322412), we get a palindrome (53655566555635).

The spelling of 21422333233223 in words is "twenty-one trillion, four hundred twenty-two billion, three hundred thirty-three million, two hundred thirty-three thousand, two hundred twenty-three".