1226100331 has 2 divisors, whose sum is σ = 1226100332. Its totient is φ = 1226100330.

The previous prime is 1226100311. The next prime is 1226100341. The reversal of 1226100331 is 1330016221.

It is a strong prime.

It is an emirp because it is prime and its reverse (1330016221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1226100331 - 2¹⁹ = 1225576043 is a prime.

It is a super-2 number, since 2×1226100331² = 3006644043356619122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1226100299 and 1226100308.

It is not a weakly prime, because it can be changed into another prime (1226100311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 613050165 + 613050166.

It is an arithmetic number, because the mean of its divisors is an integer number (613050166).

Almost surely, 2^1226100331 is an apocalyptic number.

1226100331 is a deficient number, since it is larger than the sum of its proper divisors (1).

1226100331 is an equidigital number, since it uses as much as digits as its factorization.

1226100331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 1226100331 is about 35015.7154860500. The cubic root of 1226100331 is about 1070.3077494258.

Adding to 1226100331 its reverse (1330016221), we get a palindrome (2556116552).

The spelling of 1226100331 in words is "one billion, two hundred twenty-six million, one hundred thousand, three hundred thirty-one".