202142214194 has 16 divisors (see below), whose sum is σ = 321207895008. Its totient is φ = 95078786112.

The previous prime is 202142214193. The next prime is 202142214221. The reversal of 202142214194 is 491412241202.

It is a super-2 number, since 2×202142214194² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 202142214194.

It is not an unprimeable number, because it can be changed into a prime (202142214193) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1397624 + ... + 1535459.

It is an arithmetic number, because the mean of its divisors is an integer number (20075493438).

Almost surely, 2^202142214194 is an apocalyptic number.

202142214194 is a deficient number, since it is larger than the sum of its proper divisors (119065680814).

202142214194 is a wasteful number, since it uses less digits than its factorization.

202142214194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2935129.

The product of its (nonzero) digits is 9216, while the sum is 32.

Adding to 202142214194 its reverse (491412241202), we get a palindrome (693554455396).

The spelling of 202142214194 in words is "two hundred two billion, one hundred forty-two million, two hundred fourteen thousand, one hundred ninety-four".