202121131010 has 8 divisors (see below), whose sum is σ = 363818035836. Its totient is φ = 80848452400.

The previous prime is 202121130989. The next prime is 202121131019. The reversal of 202121131010 is 10131121202.

202121131010 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 202115882329 + 5248681 = 449573^2 + 2291^2 .

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

It is not an unprimeable number, because it can be changed into a prime (202121131019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10106056541 + ... + 10106056560.

Almost surely, 2^202121131010 is an apocalyptic number.

202121131010 is a deficient number, since it is larger than the sum of its proper divisors (161696904826).

202121131010 is a wasteful number, since it uses less digits than its factorization.

202121131010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20212113108.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 202121131010 its reverse (10131121202), we get a palindrome (212252252212).

The spelling of 202121131010 in words is "two hundred two billion, one hundred twenty-one million, one hundred thirty-one thousand, ten".