201121001102101 has 8 divisors (see below), whose sum is σ = 224159629711680. Its totient is φ = 179327703768768.

The previous prime is 201121001102089. The next prime is 201121001102117. The reversal of 201121001102101 is 101201100121102.

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 201121001102101 - 2²¹ = 201120999004949 is a prime.

It is a super-2 number, since 2×201121001102101² (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 (201121001102191) 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, 311332818721 + ... + 311332819366.

It is an arithmetic number, because the mean of its divisors is an integer number (28019953713960).

Almost surely, 2^{201121001102101} is an apocalyptic number.

It is an amenable number.

201121001102101 is a deficient number, since it is larger than the sum of its proper divisors (23038628609579).

201121001102101 is a wasteful number, since it uses less digits than its factorization.

201121001102101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 622665638123.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 201121001102101 its reverse (101201100121102), we get a palindrome (302322101223203).

The spelling of 201121001102101 in words is "two hundred one trillion, one hundred twenty-one billion, one million, one hundred two thousand, one hundred one".