201121331200019 has 4 divisors (see below), whose sum is σ = 204418402203360. Its totient is φ = 197824260196680.

The previous prime is 201121331200003. The next prime is 201121331200033. The reversal of 201121331200019 is 910002133121102.

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 201121331200019 - 2⁴ = 201121331200003 is a prime.

It is a super-2 number, since 2×201121331200019² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201121331200079) 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, 1648535501579 + ... + 1648535501700.

It is an arithmetic number, because the mean of its divisors is an integer number (51104600550840).

Almost surely, 2^{201121331200019} is an apocalyptic number.

201121331200019 is a deficient number, since it is larger than the sum of its proper divisors (3297071003341).

201121331200019 is an equidigital number, since it uses as much as digits as its factorization.

201121331200019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3297071003340.

The product of its (nonzero) digits is 648, while the sum is 26.

The spelling of 201121331200019 in words is "two hundred one trillion, one hundred twenty-one billion, three hundred thirty-one million, two hundred thousand, nineteen".