121101210107 has 2 divisors, whose sum is σ = 121101210108. Its totient is φ = 121101210106.

The previous prime is 121101210103. The next prime is 121101210121. The reversal of 121101210107 is 701012101121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121101210107 - 2² = 121101210103 is a prime.

It is not a weakly prime, because it can be changed into another prime (121101210103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60550605053 + 60550605054.

It is an arithmetic number, because the mean of its divisors is an integer number (60550605054).

Almost surely, 2^121101210107 is an apocalyptic number.

121101210107 is a deficient number, since it is larger than the sum of its proper divisors (1).

121101210107 is an equidigital number, since it uses as much as digits as its factorization.

121101210107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28, while the sum is 17.

Adding to 121101210107 its reverse (701012101121), we get a palindrome (822113311228).

The spelling of 121101210107 in words is "one hundred twenty-one billion, one hundred one million, two hundred ten thousand, one hundred seven".