21230201030202 has 24 divisors (see below), whose sum is σ = 46002622180320. Its totient is φ = 7076140864200.

The previous prime is 21230201030173. The next prime is 21230201030273. The reversal of 21230201030202 is 20203010203212.

21230201030202 is a `hidden beast` number, since 2 + 1 + 230 + 201 + 0 + 30 + 202 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49180174 + ... + 49609977.

It is an arithmetic number, because the mean of its divisors is an integer number (1916775924180).

Almost surely, 2^{21230201030202} is an apocalyptic number.

21230201030202 is an abundant number, since it is smaller than the sum of its proper divisors (24772421150118).

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

21230201030202 is a wasteful number, since it uses less digits than its factorization.

21230201030202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98802098 (or 98802095 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 21230201030202 its reverse (20203010203212), we get a palindrome (41433211233414).

The spelling of 21230201030202 in words is "twenty-one trillion, two hundred thirty billion, two hundred one million, thirty thousand, two hundred two".