10121111222231 has 2 divisors, whose sum is σ = 10121111222232. Its totient is φ = 10121111222230.

The previous prime is 10121111222227. The next prime is 10121111222269. The reversal of 10121111222231 is 13222211112101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10121111222231 - 2² = 10121111222227 is a prime.

It is a super-3 number, since 3×10121111222231³ (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10121111222291) 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, 5060555611115 + 5060555611116.

It is an arithmetic number, because the mean of its divisors is an integer number (5060555611116).

Almost surely, 2^{10121111222231} is an apocalyptic number.

10121111222231 is a deficient number, since it is larger than the sum of its proper divisors (1).

10121111222231 is an equidigital number, since it uses as much as digits as its factorization.

10121111222231 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 20.

Adding to 10121111222231 its reverse (13222211112101), we get a palindrome (23343322334332).

The spelling of 10121111222231 in words is "ten trillion, one hundred twenty-one billion, one hundred eleven million, two hundred twenty-two thousand, two hundred thirty-one".