23110401101221 has 16 divisors (see below), whose sum is σ = 26605630379520. Its totient is φ = 19663618066560.

The previous prime is 23110401101201. The next prime is 23110401101231. The reversal of 23110401101221 is 12210110401132.

It is not a de Polignac number, because 23110401101221 - 2⁷ = 23110401101093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23110401101201) 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, 27190116 + ... + 28027186.

It is an arithmetic number, because the mean of its divisors is an integer number (1662851898720).

Almost surely, 2^{23110401101221} is an apocalyptic number.

It is an amenable number.

23110401101221 is a deficient number, since it is larger than the sum of its proper divisors (3495229278299).

23110401101221 is a wasteful number, since it uses less digits than its factorization.

23110401101221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 866004.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 23110401101221 its reverse (12210110401132), we get a palindrome (35320511502353).

The spelling of 23110401101221 in words is "twenty-three trillion, one hundred ten billion, four hundred one million, one hundred one thousand, two hundred twenty-one".