112212101012261 has 2 divisors, whose sum is σ = 112212101012262. Its totient is φ = 112212101012260.

The previous prime is 112212101012239. The next prime is 112212101012317. The reversal of 112212101012261 is 162210101212211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 108490847819236 + 3721253193025 = 10415894^2 + 1929055^2 .

It is a cyclic number.

It is not a de Polignac number, because 112212101012261 - 2²² = 112212096817957 is a prime.

It is a super-2 number, since 2×112212101012261² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (112212101012161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56106050506130 + 56106050506131.

It is an arithmetic number, because the mean of its divisors is an integer number (56106050506131).

Almost surely, 2^{112212101012261} is an apocalyptic number.

It is an amenable number.

112212101012261 is a deficient number, since it is larger than the sum of its proper divisors (1).

112212101012261 is an equidigital number, since it uses as much as digits as its factorization.

112212101012261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 23.

Adding to 112212101012261 its reverse (162210101212211), we get a palindrome (274422202224472).

The spelling of 112212101012261 in words is "one hundred twelve trillion, two hundred twelve billion, one hundred one million, twelve thousand, two hundred sixty-one".