202021212322230 has 128 divisors (see below), whose sum is σ = 555075666625536. Its totient is φ = 46096259328000.

The previous prime is 202021212322199. The next prime is 202021212322247. The reversal of 202021212322230 is 32223212120202.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 202021212322230.

It is a congruent number.

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, 2161047090 + ... + 2161140570.

It is an arithmetic number, because the mean of its divisors is an integer number (4336528645512).

Almost surely, 2^{202021212322230} is an apocalyptic number.

202021212322230 is an abundant number, since it is smaller than the sum of its proper divisors (353054454303306).

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

202021212322230 is a wasteful number, since it uses less digits than its factorization.

202021212322230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111222.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 202021212322230 its reverse (32223212120202), we get a palindrome (234244424442432).

The spelling of 202021212322230 in words is "two hundred two trillion, twenty-one billion, two hundred twelve million, three hundred twenty-two thousand, two hundred thirty".