101220112111247 has 2 divisors, whose sum is σ = 101220112111248. Its totient is φ = 101220112111246.

The previous prime is 101220112111219. The next prime is 101220112111333. The reversal of 101220112111247 is 742111211022101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 101220112111247 - 2³⁴ = 101202932242063 is a prime.

It is a super-3 number, since 3×101220112111247³ (a number of 43 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101220132111247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50610056055623 + 50610056055624.

It is an arithmetic number, because the mean of its divisors is an integer number (50610056055624).

Almost surely, 2^{101220112111247} is an apocalyptic number.

101220112111247 is a deficient number, since it is larger than the sum of its proper divisors (1).

101220112111247 is an equidigital number, since it uses as much as digits as its factorization.

101220112111247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 448, while the sum is 26.

Adding to 101220112111247 its reverse (742111211022101), we get a palindrome (843331323133348).

The spelling of 101220112111247 in words is "one hundred one trillion, two hundred twenty billion, one hundred twelve million, one hundred eleven thousand, two hundred forty-seven".