202101221010101 has 8 divisors (see below), whose sum is σ = 232067481946944. Its totient is φ = 172408624557120.

The previous prime is 202101221010047. The next prime is 202101221010109. The reversal of 202101221010101 is 101010122101202.

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

It is not a de Polignac number, because 202101221010101 - 2³⁰ = 202100147268277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202101221010109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68416119380 + ... + 68416122333.

It is an arithmetic number, because the mean of its divisors is an integer number (29008435243368).

Almost surely, 2^{202101221010101} is an apocalyptic number.

It is an amenable number.

202101221010101 is a deficient number, since it is larger than the sum of its proper divisors (29966260936843).

202101221010101 is a wasteful number, since it uses less digits than its factorization.

202101221010101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136832241931.

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

Adding to 202101221010101 its reverse (101010122101202), we get a palindrome (303111343111303).

The spelling of 202101221010101 in words is "two hundred two trillion, one hundred one billion, two hundred twenty-one million, ten thousand, one hundred one".