201121221201121 has 8 divisors (see below), whose sum is σ = 219201627556800. Its totient is φ = 183413606729232.

The previous prime is 201121221201119. The next prime is 201121221201143. The reversal of 201121221201121 is 121102122121102.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 201121221201121 - 2¹ = 201121221201119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201121221201161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93197969821 + ... + 93197971978.

It is an arithmetic number, because the mean of its divisors is an integer number (27400203444600).

Almost surely, 2^{201121221201121} is an apocalyptic number.

It is an amenable number.

201121221201121 is a deficient number, since it is larger than the sum of its proper divisors (18080406355679).

201121221201121 is a wasteful number, since it uses less digits than its factorization.

201121221201121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186395941895.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 201121221201121 its reverse (121102122121102), we get a palindrome (322223343322223).

The spelling of 201121221201121 in words is "two hundred one trillion, one hundred twenty-one billion, two hundred twenty-one million, two hundred one thousand, one hundred twenty-one".