201121221101193 has 16 divisors (see below), whose sum is σ = 301305200155200. Its totient is φ = 132574288065120.

The previous prime is 201121221101153. The next prime is 201121221101351. The reversal of 201121221101193 is 391101122121102.

201121221101193 is a `hidden beast` number, since 201 + 121 + 221 + 1 + 0 + 119 + 3 = 666.

It is not a de Polignac number, because 201121221101193 - 2¹⁴ = 201121221084809 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (201121221101153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41847942063 + ... + 41847946868.

It is an arithmetic number, because the mean of its divisors is an integer number (18831575009700).

Almost surely, 2^{201121221101193} is an apocalyptic number.

It is an amenable number.

201121221101193 is a deficient number, since it is larger than the sum of its proper divisors (100183979054007).

201121221101193 is an equidigital number, since it uses as much as digits as its factorization.

201121221101193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83695889029 (or 83695889023 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 27.

Adding to 201121221101193 its reverse (391101122121102), we get a palindrome (592222343222295).

The spelling of 201121221101193 in words is "two hundred one trillion, one hundred twenty-one billion, two hundred twenty-one million, one hundred one thousand, one hundred ninety-three".