202010201221101 has 128 divisors (see below), whose sum is σ = 339372575539200. Its totient is φ = 104036743249920.

The previous prime is 202010201221099. The next prime is 202010201221121. The reversal of 202010201221101 is 101122102010202.

It is not a de Polignac number, because 202010201221101 - 2¹ = 202010201221099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202010201221121) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 16438288365 + ... + 16438300653.

It is an arithmetic number, because the mean of its divisors is an integer number (2651348246400).

Almost surely, 2^{202010201221101} is an apocalyptic number.

202010201221101 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

202010201221101 is a deficient number, since it is larger than the sum of its proper divisors (137362374318099).

202010201221101 is a wasteful number, since it uses less digits than its factorization.

202010201221101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15339.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 202010201221101 its reverse (101122102010202), we get a palindrome (303132303231303).

The spelling of 202010201221101 in words is "two hundred two trillion, ten billion, two hundred one million, two hundred twenty-one thousand, one hundred one".