10111222212251 has 2 divisors, whose sum is σ = 10111222212252. Its totient is φ = 10111222212250.

The previous prime is 10111222212209. The next prime is 10111222212307. The reversal of 10111222212251 is 15221222211101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10111222212251 - 2³⁰ = 10110148470427 is a prime.

It is not a weakly prime, because it can be changed into another prime (10111222215251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5055611106125 + 5055611106126.

It is an arithmetic number, because the mean of its divisors is an integer number (5055611106126).

Almost surely, 2^{10111222212251} is an apocalyptic number.

10111222212251 is a deficient number, since it is larger than the sum of its proper divisors (1).

10111222212251 is an equidigital number, since it uses as much as digits as its factorization.

10111222212251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 320, while the sum is 23.

Adding to 10111222212251 its reverse (15221222211101), we get a palindrome (25332444423352).

The spelling of 10111222212251 in words is "ten trillion, one hundred eleven billion, two hundred twenty-two million, two hundred twelve thousand, two hundred fifty-one".