202010202121 has 8 divisors (see below), whose sum is σ = 248627941184. Its totient is φ = 159832247760.

The previous prime is 202010202109. The next prime is 202010202127. The reversal of 202010202121 is 121202010202.

It is a happy number.

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 202010202121 - 2¹⁵ = 202010169353 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is not an unprimeable number, because it can be changed into a prime (202010202127) 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, 1109946075 + ... + 1109946256.

It is an arithmetic number, because the mean of its divisors is an integer number (31078492648).

Almost surely, 2^202010202121 is an apocalyptic number.

It is an amenable number.

202010202121 is a deficient number, since it is larger than the sum of its proper divisors (46617739063).

202010202121 is a wasteful number, since it uses less digits than its factorization.

202010202121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2219892351.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 202010202121 its reverse (121202010202), we get a palindrome (323212212323).

It can be divided in two parts, 202010202 and 121, that multiplied together give a palindrome (24443234442).

The spelling of 202010202121 in words is "two hundred two billion, ten million, two hundred two thousand, one hundred twenty-one".