121202001200111 has 4 divisors (see below), whose sum is σ = 130525232061672. Its totient is φ = 111878770338552.

The previous prime is 121202001200029. The next prime is 121202001200167. The reversal of 121202001200111 is 111002100202121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 121202001200111 - 2³⁰ = 121200927458287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121202001100111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4661615430761 + ... + 4661615430786.

It is an arithmetic number, because the mean of its divisors is an integer number (32631308015418).

Almost surely, 2^{121202001200111} is an apocalyptic number.

121202001200111 is a deficient number, since it is larger than the sum of its proper divisors (9323230861561).

121202001200111 is an equidigital number, since it uses as much as digits as its factorization.

121202001200111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9323230861560.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 121202001200111 its reverse (111002100202121), we get a palindrome (232204101402232).

The spelling of 121202001200111 in words is "one hundred twenty-one trillion, two hundred two billion, one million, two hundred thousand, one hundred eleven".