2221012012031 has 2 divisors, whose sum is σ = 2221012012032. Its totient is φ = 2221012012030.

The previous prime is 2221012011991. The next prime is 2221012012039. The reversal of 2221012012031 is 1302102101222.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2221012012031 is a prime.

It is a super-2 number, since 2×2221012012031² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2221012012039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110506006015 + 1110506006016.

It is an arithmetic number, because the mean of its divisors is an integer number (1110506006016).

Almost surely, 2^{2221012012031} is an apocalyptic number.

2221012012031 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221012012031 is an equidigital number, since it uses as much as digits as its factorization.

2221012012031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 2221012012031 its reverse (1302102101222), we get a palindrome (3523114113253).

The spelling of 2221012012031 in words is "two trillion, two hundred twenty-one billion, twelve million, twelve thousand, thirty-one".