221122012110202 has 12 divisors (see below), whose sum is σ = 385835347661850. Its totient is φ = 94766576618616.

The previous prime is 221122012110187. The next prime is 221122012110203. The reversal of 221122012110202 is 202011210221122.

It can be written as a sum of positive squares in only one way, i.e., 219692602964961 + 1429409145241 = 14822031^2 + 1195579^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 221122012110202.

It is not an unprimeable number, because it can be changed into a prime (221122012110203) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1128173531077 + ... + 1128173531272.

Almost surely, 2^{221122012110202} is an apocalyptic number.

221122012110202 is a deficient number, since it is larger than the sum of its proper divisors (164713335551648).

221122012110202 is a wasteful number, since it uses less digits than its factorization.

221122012110202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2256347062365 (or 2256347062358 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 221122012110202 its reverse (202011210221122), we get a palindrome (423133222331324).

The spelling of 221122012110202 in words is "two hundred twenty-one trillion, one hundred twenty-two billion, twelve million, one hundred ten thousand, two hundred two".