1012221202231 has 2 divisors, whose sum is σ = 1012221202232. Its totient is φ = 1012221202230.

The previous prime is 1012221202229. The next prime is 1012221202301. The reversal of 1012221202231 is 1322021222101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1012221202231 - 2¹ = 1012221202229 is a prime.

It is a super-2 number, since 2×1012221202231² (a number of 25 digits) contains 22 as substring.

Together with 1012221202229, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1012221202199 and 1012221202208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1012221202331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506110601115 + 506110601116.

It is an arithmetic number, because the mean of its divisors is an integer number (506110601116).

Almost surely, 2^{1012221202231} is an apocalyptic number.

1012221202231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012221202231 is an equidigital number, since it uses as much as digits as its factorization.

1012221202231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 1012221202231 its reverse (1322021222101), we get a palindrome (2334242424332).

The spelling of 1012221202231 in words is "one trillion, twelve billion, two hundred twenty-one million, two hundred two thousand, two hundred thirty-one".