202121013013102 has 16 divisors (see below), whose sum is σ = 318266001907200. Its totient is φ = 96142854739320.

The previous prime is 202121013013091. The next prime is 202121013013109. The reversal of 202121013013102 is 201310310121202.

It is a self number, because there is not a number n which added to its sum of digits gives 202121013013102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202121013013109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27627253452 + ... + 27627260767.

It is an arithmetic number, because the mean of its divisors is an integer number (19891625119200).

Almost surely, 2^{202121013013102} is an apocalyptic number.

202121013013102 is a deficient number, since it is larger than the sum of its proper divisors (116144988894098).

202121013013102 is a wasteful number, since it uses less digits than its factorization.

202121013013102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55254514311.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 202121013013102 its reverse (201310310121202), we get a palindrome (403431323134304).

The spelling of 202121013013102 in words is "two hundred two trillion, one hundred twenty-one billion, thirteen million, thirteen thousand, one hundred two".