202122212194 has 24 divisors (see below), whose sum is σ = 352934971200. Its totient is φ = 86561828136.

The previous prime is 202122212177. The next prime is 202122212197. The reversal of 202122212194 is 491212221202.

It is not an unprimeable number, because it can be changed into a prime (202122212197) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 600022 + ... + 874225.

It is an arithmetic number, because the mean of its divisors is an integer number (14705623800).

Almost surely, 2^202122212194 is an apocalyptic number.

202122212194 is a deficient number, since it is larger than the sum of its proper divisors (150812759006).

202122212194 is a wasteful number, since it uses less digits than its factorization.

202122212194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1475662 (or 1475655 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

Adding to 202122212194 its reverse (491212221202), we get a palindrome (693334433396).

The spelling of 202122212194 in words is "two hundred two billion, one hundred twenty-two million, two hundred twelve thousand, one hundred ninety-four".