10221212121031 has 2 divisors, whose sum is σ = 10221212121032. Its totient is φ = 10221212121030.

The previous prime is 10221212120971. The next prime is 10221212121119. The reversal of 10221212121031 is 13012121212201.

It is a weak prime.

It is an emirp because it is prime and its reverse (13012121212201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10221212121031 - 2⁹ = 10221212120519 is a prime.

It is a super-2 number, since 2×10221212121031² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10221215121031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5110606060515 + 5110606060516.

It is an arithmetic number, because the mean of its divisors is an integer number (5110606060516).

Almost surely, 2^{10221212121031} is an apocalyptic number.

10221212121031 is a deficient number, since it is larger than the sum of its proper divisors (1).

10221212121031 is an equidigital number, since it uses as much as digits as its factorization.

10221212121031 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 19.

Adding to 10221212121031 its reverse (13012121212201), we get a palindrome (23233333333232).

The spelling of 10221212121031 in words is "ten trillion, two hundred twenty-one billion, two hundred twelve million, one hundred twenty-one thousand, thirty-one".