121211000099993 has 2 divisors, whose sum is σ = 121211000099994. Its totient is φ = 121211000099992.

The previous prime is 121211000099971. The next prime is 121211000100103. The reversal of 121211000099993 is 399990000112121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 120298493716489 + 912506383504 = 10968067^2 + 955252^2 .

It is a cyclic number.

It is not a de Polignac number, because 121211000099993 - 2⁶ = 121211000099929 is a prime.

It is not a weakly prime, because it can be changed into another prime (121211000099933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60605500049996 + 60605500049997.

It is an arithmetic number, because the mean of its divisors is an integer number (60605500049997).

Almost surely, 2^{121211000099993} is an apocalyptic number.

It is an amenable number.

121211000099993 is a deficient number, since it is larger than the sum of its proper divisors (1).

121211000099993 is an equidigital number, since it uses as much as digits as its factorization.

121211000099993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 78732, while the sum is 47.

The spelling of 121211000099993 in words is "one hundred twenty-one trillion, two hundred eleven billion, ninety-nine thousand, nine hundred ninety-three".