202020121101 has 8 divisors (see below), whose sum is σ = 276640165984. Its totient is φ = 131040078480.

The previous prime is 202020121033. The next prime is 202020121133. The reversal of 202020121101 is 101121020202.

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

It is not a de Polignac number, because 202020121101 - 2¹¹ = 202020119053 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 (202020121151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 910000435 + ... + 910000656.

It is an arithmetic number, because the mean of its divisors is an integer number (34580020748).

Almost surely, 2^202020121101 is an apocalyptic number.

It is an amenable number.

202020121101 is a deficient number, since it is larger than the sum of its proper divisors (74620044883).

202020121101 is a wasteful number, since it uses less digits than its factorization.

202020121101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1820001131.

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

Adding to 202020121101 its reverse (101121020202), we get a palindrome (303141141303).

The spelling of 202020121101 in words is "two hundred two billion, twenty million, one hundred twenty-one thousand, one hundred one".