112121009977 has 2 divisors, whose sum is σ = 112121009978. Its totient is φ = 112121009976.

The previous prime is 112121009927. The next prime is 112121009999. The reversal of 112121009977 is 779900121211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99924899881 + 12196110096 = 316109^2 + 110436^2 .

It is a cyclic number.

It is not a de Polignac number, because 112121009977 - 2⁷ = 112121009849 is a prime.

It is a super-2 number, since 2×112121009977² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (112121009927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56060504988 + 56060504989.

It is an arithmetic number, because the mean of its divisors is an integer number (56060504989).

Almost surely, 2^112121009977 is an apocalyptic number.

It is an amenable number.

112121009977 is a deficient number, since it is larger than the sum of its proper divisors (1).

112121009977 is an equidigital number, since it uses as much as digits as its factorization.

112121009977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15876, while the sum is 40.

The spelling of 112121009977 in words is "one hundred twelve billion, one hundred twenty-one million, nine thousand, nine hundred seventy-seven".