1222011031 has 2 divisors, whose sum is σ = 1222011032. Its totient is φ = 1222011030.

The previous prime is 1222011013. The next prime is 1222011047. The reversal of 1222011031 is 1301102221.

Together with previous prime (1222011013) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1222011031 - 2¹³ = 1222002839 is a prime.

It is a super-2 number, since 2×1222011031² = 2986621919771365922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1222011071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611005515 + 611005516.

It is an arithmetic number, because the mean of its divisors is an integer number (611005516).

Almost surely, 2^1222011031 is an apocalyptic number.

1222011031 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222011031 is an equidigital number, since it uses as much as digits as its factorization.

1222011031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1222011031 is about 34957.2743645725. The cubic root of 1222011031 is about 1069.1165243517.

Adding to 1222011031 its reverse (1301102221), we get a palindrome (2523113252).

The spelling of 1222011031 in words is "one billion, two hundred twenty-two million, eleven thousand, thirty-one".