121010112077 has 2 divisors, whose sum is σ = 121010112078. Its totient is φ = 121010112076.

The previous prime is 121010112059. The next prime is 121010112103. The reversal of 121010112077 is 770211010121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 117063885316 + 3946226761 = 342146^2 + 62819^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121010112077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121010112017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60505056038 + 60505056039.

It is an arithmetic number, because the mean of its divisors is an integer number (60505056039).

Almost surely, 2^121010112077 is an apocalyptic number.

It is an amenable number.

121010112077 is a deficient number, since it is larger than the sum of its proper divisors (1).

121010112077 is an equidigital number, since it uses as much as digits as its factorization.

121010112077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 196, while the sum is 23.

Adding to 121010112077 its reverse (770211010121), we get a palindrome (891221122198).

The spelling of 121010112077 in words is "one hundred twenty-one billion, ten million, one hundred twelve thousand, seventy-seven".