10202121012102 has 32 divisors (see below), whose sum is σ = 20592009081600. Its totient is φ = 3369414228768.

The previous prime is 10202121012059. The next prime is 10202121012107. The reversal of 10202121012102 is 20121012120201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10202121012107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25706049 + ... + 26099907.

It is an arithmetic number, because the mean of its divisors is an integer number (643500283800).

Almost surely, 2^{10202121012102} is an apocalyptic number.

10202121012102 is an abundant number, since it is smaller than the sum of its proper divisors (10389888069498).

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

10202121012102 is a wasteful number, since it uses less digits than its factorization.

10202121012102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433580.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 10202121012102 its reverse (20121012120201), we get a palindrome (30323133132303).

The spelling of 10202121012102 in words is "ten trillion, two hundred two billion, one hundred twenty-one million, twelve thousand, one hundred two".