21223120123301 has 32 divisors (see below), whose sum is σ = 24106628505600. Its totient is φ = 18578129423040.

The previous prime is 21223120123217. The next prime is 21223120123307. The reversal of 21223120123301 is 10332102132212.

It is a cyclic number.

It is not a de Polignac number, because 21223120123301 - 2¹⁰ = 21223120122277 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21223120123307) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6139370 + ... + 8951988.

It is an arithmetic number, because the mean of its divisors is an integer number (753332140800).

Almost surely, 2^{21223120123301} is an apocalyptic number.

It is an amenable number.

21223120123301 is a deficient number, since it is larger than the sum of its proper divisors (2883508382299).

21223120123301 is a wasteful number, since it uses less digits than its factorization.

21223120123301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2813249.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 21223120123301 its reverse (10332102132212), we get a palindrome (31555222255513).

The spelling of 21223120123301 in words is "twenty-one trillion, two hundred twenty-three billion, one hundred twenty million, one hundred twenty-three thousand, three hundred one".