1223402111401 has 2 divisors, whose sum is σ = 1223402111402. Its totient is φ = 1223402111400.

The previous prime is 1223402111389. The next prime is 1223402111423. The reversal of 1223402111401 is 1041112043221.

It is an a-pointer prime, because the next prime (1223402111423) can be obtained adding 1223402111401 to its sum of digits (22).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1131425779225 + 91976332176 = 1063685^2 + 303276^2 .

It is a cyclic number.

It is not a de Polignac number, because 1223402111401 - 2⁵ = 1223402111369 is a prime.

It is not a weakly prime, because it can be changed into another prime (1223402111431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611701055700 + 611701055701.

It is an arithmetic number, because the mean of its divisors is an integer number (611701055701).

Almost surely, 2^{1223402111401} is an apocalyptic number.

It is an amenable number.

1223402111401 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223402111401 is an equidigital number, since it uses as much as digits as its factorization.

1223402111401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 1223402111401 its reverse (1041112043221), we get a palindrome (2264514154622).

The spelling of 1223402111401 in words is "one trillion, two hundred twenty-three billion, four hundred two million, one hundred eleven thousand, four hundred one".