202112033100221 has 8 divisors (see below), whose sum is σ = 202194038732088. Its totient is φ = 202030028928000.

The previous prime is 202112033100217. The next prime is 202112033100259. The reversal of 202112033100221 is 122001330211202.

It can be written as a sum of positive squares in 4 ways, for example, as 4788486204121 + 197323546896100 = 2188261^2 + 14047190^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 202112033100221 - 2² = 202112033100217 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 202112033100193 and 202112033100202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202112033100281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 341201261 + ... + 341793101.

It is an arithmetic number, because the mean of its divisors is an integer number (25274254841511).

Almost surely, 2^{202112033100221} is an apocalyptic number.

It is an amenable number.

202112033100221 is a deficient number, since it is larger than the sum of its proper divisors (82005631867).

202112033100221 is a wasteful number, since it uses less digits than its factorization.

202112033100221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 729823.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 202112033100221 its reverse (122001330211202), we get a palindrome (324113363311423).

The spelling of 202112033100221 in words is "two hundred two trillion, one hundred twelve billion, thirty-three million, one hundred thousand, two hundred twenty-one".