201121011110121 has 8 divisors (see below), whose sum is σ = 274701868833504. Its totient is φ = 130810413730080.

The previous prime is 201121011110101. The next prime is 201121011110147. The reversal of 201121011110121 is 121011110121102.

201121011110121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 201121011110121 - 2¹⁵ = 201121011077353 is a prime.

It is a super-2 number, since 2×201121011110121² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 201121011110121.

It is not an unprimeable number, because it can be changed into a prime (201121011110101) 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, 817565085691 + ... + 817565085936.

It is an arithmetic number, because the mean of its divisors is an integer number (34337733604188).

Almost surely, 2^{201121011110121} is an apocalyptic number.

It is an amenable number.

201121011110121 is a deficient number, since it is larger than the sum of its proper divisors (73580857723383).

201121011110121 is a wasteful number, since it uses less digits than its factorization.

201121011110121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1635130171671.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 201121011110121 its reverse (121011110121102), we get a palindrome (322132121231223).

The spelling of 201121011110121 in words is "two hundred one trillion, one hundred twenty-one billion, eleven million, one hundred ten thousand, one hundred twenty-one".