201101210121201 has 64 divisors (see below), whose sum is σ = 296268466233600. Its totient is φ = 120570138823680.

The previous prime is 201101210121143. The next prime is 201101210121241. The reversal of 201101210121201 is 102121012101102.

It is a happy number.

It is not a de Polignac number, because 201101210121201 - 2¹⁰ = 201101210120177 is a prime.

It is a super-2 number, since 2×201101210121201² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (201101210121241) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1095403746 + ... + 1095587316.

It is an arithmetic number, because the mean of its divisors is an integer number (4629194784900).

Almost surely, 2^{201101210121201} is an apocalyptic number.

It is an amenable number.

201101210121201 is a deficient number, since it is larger than the sum of its proper divisors (95167256112399).

201101210121201 is a wasteful number, since it uses less digits than its factorization.

201101210121201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187346.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 201101210121201 its reverse (102121012101102), we get a palindrome (303222222222303).

The spelling of 201101210121201 in words is "two hundred one trillion, one hundred one billion, two hundred ten million, one hundred twenty-one thousand, two hundred one".