200121101212919 has 2 divisors, whose sum is σ = 200121101212920. Its totient is φ = 200121101212918.

The previous prime is 200121101212913. The next prime is 200121101212933. The reversal of 200121101212919 is 919212101121002.

200121101212919 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 not a de Polignac number, because 200121101212919 - 2²⁰ = 200121100164343 is a prime.

It is a super-2 number, since 2×200121101212919² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200121101212913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100060550606459 + 100060550606460.

It is an arithmetic number, because the mean of its divisors is an integer number (100060550606460).

Almost surely, 2^{200121101212919} is an apocalyptic number.

200121101212919 is a deficient number, since it is larger than the sum of its proper divisors (1).

200121101212919 is an equidigital number, since it uses as much as digits as its factorization.

200121101212919 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 32.

The spelling of 200121101212919 in words is "two hundred trillion, one hundred twenty-one billion, one hundred one million, two hundred twelve thousand, nine hundred nineteen".