221121201221202 has 16 divisors (see below), whose sum is σ = 442537427412000. Its totient is φ = 73657896245472.

The previous prime is 221121201221159. The next prime is 221121201221233. The reversal of 221121201221202 is 202122102121122.

221121201221202 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×221121201221202² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12292697323 + ... + 12292715310.

It is an arithmetic number, because the mean of its divisors is an integer number (27658589213250).

Almost surely, 2^{221121201221202} is an apocalyptic number.

221121201221202 is an abundant number, since it is smaller than the sum of its proper divisors (221416226190798).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221121201221202 is a wasteful number, since it uses less digits than its factorization.

221121201221202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24585414137.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 221121201221202 its reverse (202122102121122), we get a palindrome (423243303342324).

The spelling of 221121201221202 in words is "two hundred twenty-one trillion, one hundred twenty-one billion, two hundred one million, two hundred twenty-one thousand, two hundred two".