12201000121951 has 2 divisors, whose sum is σ = 12201000121952. Its totient is φ = 12201000121950.

The previous prime is 12201000121939. The next prime is 12201000122009. The reversal of 12201000121951 is 15912100010221.

12201000121951 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12201000121951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12201000121931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6100500060975 + 6100500060976.

It is an arithmetic number, because the mean of its divisors is an integer number (6100500060976).

Almost surely, 2^{12201000121951} is an apocalyptic number.

12201000121951 is a deficient number, since it is larger than the sum of its proper divisors (1).

12201000121951 is an equidigital number, since it uses as much as digits as its factorization.

12201000121951 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360, while the sum is 25.

The spelling of 12201000121951 in words is "twelve trillion, two hundred one billion, one hundred twenty-one thousand, nine hundred fifty-one".