21202212200122 has 8 divisors (see below), whose sum is σ = 32095091862900. Its totient is φ = 10503848245824.

The previous prime is 21202212200119. The next prime is 21202212200161. The reversal of 21202212200122 is 22100221220212.

It can be written as a sum of positive squares in 2 ways, for example, as 20545559663841 + 656652536281 = 4532721^2 + 810341^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×21202212200122³ (a number of 41 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21202212200122.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48628926847 + ... + 48628927282.

Almost surely, 2^{21202212200122} is an apocalyptic number.

21202212200122 is a deficient number, since it is larger than the sum of its proper divisors (10892879662778).

21202212200122 is a wasteful number, since it uses less digits than its factorization.

21202212200122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97257854240.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 21202212200122 its reverse (22100221220212), we get a palindrome (43302433420334).

The spelling of 21202212200122 in words is "twenty-one trillion, two hundred two billion, two hundred twelve million, two hundred thousand, one hundred twenty-two".