11220021000031 has 2 divisors, whose sum is σ = 11220021000032. Its totient is φ = 11220021000030.

The previous prime is 11220021000017. The next prime is 11220021000043. The reversal of 11220021000031 is 13000012002211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11220021000031 - 2¹⁵ = 11220020967263 is a prime.

It is a super-2 number, since 2×11220021000031² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11220020999975 and 11220021000020.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11220021000011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5610010500015 + 5610010500016.

It is an arithmetic number, because the mean of its divisors is an integer number (5610010500016).

Almost surely, 2^{11220021000031} is an apocalyptic number.

11220021000031 is a deficient number, since it is larger than the sum of its proper divisors (1).

11220021000031 is an equidigital number, since it uses as much as digits as its factorization.

11220021000031 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.

Adding to 11220021000031 its reverse (13000012002211), we get a palindrome (24220033002242).

The spelling of 11220021000031 in words is "eleven trillion, two hundred twenty billion, twenty-one million, thirty-one", and thus it is an aban number.