202101121201001 has 16 divisors (see below), whose sum is σ = 225351346544640. Its totient is φ = 179707265771280.

The previous prime is 202101121200919. The next prime is 202101121201051. The reversal of 202101121201001 is 100102121101202.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202101121201001 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (202101121201051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1086670841 + ... + 1086856806.

It is an arithmetic number, because the mean of its divisors is an integer number (14084459159040).

Almost surely, 2^{202101121201001} is an apocalyptic number.

It is an amenable number.

202101121201001 is a deficient number, since it is larger than the sum of its proper divisors (23250225343639).

202101121201001 is a wasteful number, since it uses less digits than its factorization.

202101121201001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2173527844.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 202101121201001 its reverse (100102121101202), we get a palindrome (302203242302203).

It can be divided in two parts, 20210 and 1121201001, that added together give a palindrome (1121221211).

The spelling of 202101121201001 in words is "two hundred two trillion, one hundred one billion, one hundred twenty-one million, two hundred one thousand, one".