1011222031 has 2 divisors, whose sum is σ = 1011222032. Its totient is φ = 1011222030.

The previous prime is 1011222001. The next prime is 1011222131. The reversal of 1011222031 is 1302221101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1011222031 - 2¹¹ = 1011219983 is a prime.

It is a super-2 number, since 2×1011222031² = 2045139991959529922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1011222001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505611015 + 505611016.

It is an arithmetic number, because the mean of its divisors is an integer number (505611016).

Almost surely, 2^1011222031 is an apocalyptic number.

1011222031 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011222031 is an equidigital number, since it uses as much as digits as its factorization.

1011222031 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 1011222031 is about 31799.7174672984. The cubic root of 1011222031 is about 1003.7267709250.

Adding to 1011222031 its reverse (1302221101), we get a palindrome (2313443132).

The spelling of 1011222031 in words is "one billion, eleven million, two hundred twenty-two thousand, thirty-one".