1226612421431 has 4 divisors (see below), whose sum is σ = 1227667119432. Its totient is φ = 1225557723432.

The previous prime is 1226612421413. The next prime is 1226612421439. The reversal of 1226612421431 is 1341242166221.

It is a happy number.

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 1226612421431 - 2²² = 1226608227127 is a prime.

It is a super-2 number, since 2×1226612421431² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1226612421391 and 1226612421400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1226612421439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 527347256 + ... + 527349581.

It is an arithmetic number, because the mean of its divisors is an integer number (306916779858).

Almost surely, 2^{1226612421431} is an apocalyptic number.

1226612421431 is a deficient number, since it is larger than the sum of its proper divisors (1054698001).

1226612421431 is a wasteful number, since it uses less digits than its factorization.

1226612421431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1054698000.

The product of its digits is 27648, while the sum is 35.

Adding to 1226612421431 its reverse (1341242166221), we get a palindrome (2567854587652).

The spelling of 1226612421431 in words is "one trillion, two hundred twenty-six billion, six hundred twelve million, four hundred twenty-one thousand, four hundred thirty-one".