201121011122101 has 8 divisors (see below), whose sum is σ = 229878820094144. Its totient is φ = 172369761138720.

The previous prime is 201121011121967. The next prime is 201121011122107. The reversal of 201121011122101 is 101221110121102.

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 201121011122101 - 2⁴¹ = 198921987866549 is a prime.

It is a super-2 number, since 2×201121011122101² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201121011122107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1639681455 + ... + 1639804108.

It is an arithmetic number, because the mean of its divisors is an integer number (28734852511768).

Almost surely, 2^{201121011122101} is an apocalyptic number.

It is an amenable number.

201121011122101 is a deficient number, since it is larger than the sum of its proper divisors (28757808972043).

201121011122101 is an equidigital number, since it uses as much as digits as its factorization.

201121011122101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3279494331.

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 201121011122101 its reverse (101221110121102), we get a palindrome (302342121243203).

The spelling of 201121011122101 in words is "two hundred one trillion, one hundred twenty-one billion, eleven million, one hundred twenty-two thousand, one hundred one".