121211101101133 has 2 divisors, whose sum is σ = 121211101101134. Its totient is φ = 121211101101132.

The previous prime is 121211101101089. The next prime is 121211101101137. The reversal of 121211101101133 is 331101101112121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78202858324644 + 43008242776489 = 8843238^2 + 6558067^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121211101101133 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121211101101133.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121211101101137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60605550550566 + 60605550550567.

It is an arithmetic number, because the mean of its divisors is an integer number (60605550550567).

Almost surely, 2^{121211101101133} is an apocalyptic number.

It is an amenable number.

121211101101133 is a deficient number, since it is larger than the sum of its proper divisors (1).

121211101101133 is an equidigital number, since it uses as much as digits as its factorization.

121211101101133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 19.

Adding to 121211101101133 its reverse (331101101112121), we get a palindrome (452312202213254).

The spelling of 121211101101133 in words is "one hundred twenty-one trillion, two hundred eleven billion, one hundred one million, one hundred one thousand, one hundred thirty-three".