1111254414421 has 2 divisors, whose sum is σ = 1111254414422. Its totient is φ = 1111254414420.

The previous prime is 1111254414377. The next prime is 1111254414437. The reversal of 1111254414421 is 1244144521111.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1093561690225 + 17692724196 = 1045735^2 + 133014^2 .

It is a cyclic number.

It is not a de Polignac number, because 1111254414421 - 2¹⁹ = 1111253890133 is a prime.

It is a super-2 number, since 2×1111254414421² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1111254414451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555627207210 + 555627207211.

It is an arithmetic number, because the mean of its divisors is an integer number (555627207211).

Almost surely, 2^{1111254414421} is an apocalyptic number.

It is an amenable number.

1111254414421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111254414421 is an equidigital number, since it uses as much as digits as its factorization.

1111254414421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5120, while the sum is 31.

Adding to 1111254414421 its reverse (1244144521111), we get a palindrome (2355398935532).

The spelling of 1111254414421 in words is "one trillion, one hundred eleven billion, two hundred fifty-four million, four hundred fourteen thousand, four hundred twenty-one".