202121231310330 has 128 divisors (see below), whose sum is σ = 491167966738176. Its totient is φ = 53227155456000.

The previous prime is 202121231310289. The next prime is 202121231310409. The reversal of 202121231310330 is 33013132121202.

It is a self number, because there is not a number n which added to its sum of digits gives 202121231310330.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1669245390 + ... + 1669366470.

It is an arithmetic number, because the mean of its divisors is an integer number (3837249740142).

Almost surely, 2^{202121231310330} is an apocalyptic number.

202121231310330 is an abundant number, since it is smaller than the sum of its proper divisors (289046735427846).

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

202121231310330 is a wasteful number, since it uses less digits than its factorization.

202121231310330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122832.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 202121231310330 its reverse (33013132121202), we get a palindrome (235134363431532).

The spelling of 202121231310330 in words is "two hundred two trillion, one hundred twenty-one billion, two hundred thirty-one million, three hundred ten thousand, three hundred thirty".