121100122212077 has 2 divisors, whose sum is σ = 121100122212078. Its totient is φ = 121100122212076.

The previous prime is 121100122212067. The next prime is 121100122212127. The reversal of 121100122212077 is 770212221001121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70852807942921 + 50247314269156 = 8417411^2 + 7088534^2 .

It is a cyclic number.

It is not a de Polignac number, because 121100122212077 - 2³² = 121095827244781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121100122212067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60550061106038 + 60550061106039.

It is an arithmetic number, because the mean of its divisors is an integer number (60550061106039).

Almost surely, 2^{121100122212077} is an apocalyptic number.

It is an amenable number.

121100122212077 is a deficient number, since it is larger than the sum of its proper divisors (1).

121100122212077 is an equidigital number, since it uses as much as digits as its factorization.

121100122212077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1568, while the sum is 29.

Adding to 121100122212077 its reverse (770212221001121), we get a palindrome (891312343213198).

The spelling of 121100122212077 in words is "one hundred twenty-one trillion, one hundred billion, one hundred twenty-two million, two hundred twelve thousand, seventy-seven".