112012020021157 has 2 divisors, whose sum is σ = 112012020021158. Its totient is φ = 112012020021156.

The previous prime is 112012020021107. The next prime is 112012020021217. The reversal of 112012020021157 is 751120020210211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72941694629281 + 39070325391876 = 8540591^2 + 6250626^2 .

It is a cyclic number.

It is not a de Polignac number, because 112012020021157 - 2¹⁵ = 112012019988389 is a prime.

It is a super-2 number, since 2×112012020021157² (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 (112012020021107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56006010010578 + 56006010010579.

It is an arithmetic number, because the mean of its divisors is an integer number (56006010010579).

Almost surely, 2^{112012020021157} is an apocalyptic number.

It is an amenable number.

112012020021157 is a deficient number, since it is larger than the sum of its proper divisors (1).

112012020021157 is an equidigital number, since it uses as much as digits as its factorization.

112012020021157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 560, while the sum is 25.

Adding to 112012020021157 its reverse (751120020210211), we get a palindrome (863132040231368).

The spelling of 112012020021157 in words is "one hundred twelve trillion, twelve billion, twenty million, twenty-one thousand, one hundred fifty-seven".