201021022101 has 8 divisors (see below), whose sum is σ = 268031960064. Its totient is φ = 134012049440.

The previous prime is 201021022093. The next prime is 201021022109. The reversal of 201021022101 is 101220120102.

It is an interprime number because it is at equal distance from previous prime (201021022093) and next prime (201021022109).

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 201021022101 - 2³ = 201021022093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201021022109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 233301 + ... + 675626.

It is an arithmetic number, because the mean of its divisors is an integer number (33503995008).

Almost surely, 2^201021022101 is an apocalyptic number.

It is an amenable number.

201021022101 is a deficient number, since it is larger than the sum of its proper divisors (67010937963).

201021022101 is an equidigital number, since it uses as much as digits as its factorization.

201021022101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 982651.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 201021022101 its reverse (101220120102), we get a palindrome (302241142203).

The spelling of 201021022101 in words is "two hundred one billion, twenty-one million, twenty-two thousand, one hundred one".