202121302130 has 32 divisors (see below), whose sum is σ = 417781834560. Its totient is φ = 69630304320.

The previous prime is 202121302099. The next prime is 202121302133. The reversal of 202121302130 is 31203121202.

It is a junction number, because it is equal to n+sod(n) for n = 202121302099 and 202121302108.

It is not an unprimeable number, because it can be changed into a prime (202121302133) 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, 48352289 + ... + 48356468.

It is an arithmetic number, because the mean of its divisors is an integer number (13055682330).

Almost surely, 2^202121302130 is an apocalyptic number.

202121302130 is an abundant number, since it is smaller than the sum of its proper divisors (215660532430).

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

202121302130 is a wasteful number, since it uses less digits than its factorization.

202121302130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96708794.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 202121302130 its reverse (31203121202), we get a palindrome (233324423332).

The spelling of 202121302130 in words is "two hundred two billion, one hundred twenty-one million, three hundred two thousand, one hundred thirty".