1223101222231 has 4 divisors (see below), whose sum is σ = 1397829968272. Its totient is φ = 1048372476192.

The previous prime is 1223101222117. The next prime is 1223101222237. The reversal of 1223101222231 is 1322221013221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1223101222231 - 2¹³ = 1223101214039 is a prime.

It is a super-2 number, since 2×1223101222231² (a number of 25 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 (1223101222237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87364373010 + ... + 87364373023.

It is an arithmetic number, because the mean of its divisors is an integer number (349457492068).

Almost surely, 2^{1223101222231} is an apocalyptic number.

1223101222231 is a deficient number, since it is larger than the sum of its proper divisors (174728746041).

1223101222231 is an equidigital number, since it uses as much as digits as its factorization.

1223101222231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174728746040.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 1223101222231 its reverse (1322221013221), we get a palindrome (2545322235452).

The spelling of 1223101222231 in words is "one trillion, two hundred twenty-three billion, one hundred one million, two hundred twenty-two thousand, two hundred thirty-one".