11220312220031 has 2 divisors, whose sum is σ = 11220312220032. Its totient is φ = 11220312220030.

The previous prime is 11220312220001. The next prime is 11220312220067. The reversal of 11220312220031 is 13002221302211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11220312220031 - 2¹⁸ = 11220311957887 is a prime.

It is a super-2 number, since 2×11220312220031² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11220312219985 and 11220312220012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11220312220001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5610156110015 + 5610156110016.

It is an arithmetic number, because the mean of its divisors is an integer number (5610156110016).

Almost surely, 2^{11220312220031} is an apocalyptic number.

11220312220031 is a deficient number, since it is larger than the sum of its proper divisors (1).

11220312220031 is an equidigital number, since it uses as much as digits as its factorization.

11220312220031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 11220312220031 its reverse (13002221302211), we get a palindrome (24222533522242).

The spelling of 11220312220031 in words is "eleven trillion, two hundred twenty billion, three hundred twelve million, two hundred twenty thousand, thirty-one".