202121135214 has 64 divisors (see below), whose sum is σ = 431333683200. Its totient is φ = 62920696320.

The previous prime is 202121135207. The next prime is 202121135219. The reversal of 202121135214 is 412531121202.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202121135219) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16149219 + ... + 16161729.

It is an arithmetic number, because the mean of its divisors is an integer number (6739588800).

Almost surely, 2^202121135214 is an apocalyptic number.

202121135214 is an abundant number, since it is smaller than the sum of its proper divisors (229212547986).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

202121135214 is a wasteful number, since it uses less digits than its factorization.

202121135214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13745.

The product of its (nonzero) digits is 960, while the sum is 24.

Adding to 202121135214 its reverse (412531121202), we get a palindrome (614652256416).

The spelling of 202121135214 in words is "two hundred two billion, one hundred twenty-one million, one hundred thirty-five thousand, two hundred fourteen".