202142212404 has 96 divisors (see below), whose sum is σ = 517896529920. Its totient is φ = 60857126400.

The previous prime is 202142212381. The next prime is 202142212417. The reversal of 202142212404 is 404212241202.

It is a happy number.

It is a super-2 number, since 2×202142212404² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16510117 + ... + 16522355.

It is an arithmetic number, because the mean of its divisors is an integer number (5394755520).

Almost surely, 2^202142212404 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 202142212404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (258948264960).

202142212404 is an abundant number, since it is smaller than the sum of its proper divisors (315754317516).

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

202142212404 is a wasteful number, since it uses less digits than its factorization.

202142212404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13061 (or 13059 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

Adding to 202142212404 its reverse (404212241202), we get a palindrome (606354453606).

The spelling of 202142212404 in words is "two hundred two billion, one hundred forty-two million, two hundred twelve thousand, four hundred four".