210001202021101 has 8 divisors (see below), whose sum is σ = 210856778184384. Its totient is φ = 209145923927040.

The previous prime is 210001202021069. The next prime is 210001202021167. The reversal of 210001202021101 is 101120202100012.

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 210001202021101 - 2⁵ = 210001202021069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210001302021101) 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, 73105305 + ... + 75923566.

It is an arithmetic number, because the mean of its divisors is an integer number (26357097273048).

Almost surely, 2^{210001202021101} is an apocalyptic number.

It is an amenable number.

210001202021101 is a deficient number, since it is larger than the sum of its proper divisors (855576163283).

210001202021101 is a wasteful number, since it uses less digits than its factorization.

210001202021101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149034611.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 210001202021101 its reverse (101120202100012), we get a palindrome (311121404121113).

The spelling of 210001202021101 in words is "two hundred ten trillion, one billion, two hundred two million, twenty-one thousand, one hundred one".