202202055172 has 24 divisors (see below), whose sum is σ = 382033024856. Its totient is φ = 93088942848.

The previous prime is 202202055119. The next prime is 202202055173. The reversal of 202202055172 is 271550202202.

It can be written as a sum of positive squares in 4 ways, for example, as 155401156 + 202046654016 = 12466^2 + 449496^2 .

It is a super-3 number, since 3×202202055172³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 202202055172.

It is not an unprimeable number, because it can be changed into a prime (202202055173) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4876713 + ... + 4918000.

Almost surely, 2^202202055172 is an apocalyptic number.

It is an amenable number.

202202055172 is a deficient number, since it is larger than the sum of its proper divisors (179830969684).

202202055172 is a wasteful number, since it uses less digits than its factorization.

202202055172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9795127 (or 9795125 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 28.

Adding to 202202055172 its reverse (271550202202), we get a palindrome (473752257374).

The spelling of 202202055172 in words is "two hundred two billion, two hundred two million, fifty-five thousand, one hundred seventy-two".