221133121302 has 16 divisors (see below), whose sum is σ = 454219384752. Its totient is φ = 71718850080.

The previous prime is 221133121291. The next prime is 221133121331. The reversal of 221133121302 is 203121331122.

221133121302 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 498047349 + ... + 498047792.

It is an arithmetic number, because the mean of its divisors is an integer number (28388711547).

Almost surely, 2^221133121302 is an apocalyptic number.

221133121302 is an abundant number, since it is smaller than the sum of its proper divisors (233086263450).

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

221133121302 is a wasteful number, since it uses less digits than its factorization.

221133121302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 996095183.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 221133121302 its reverse (203121331122), we get a palindrome (424254452424).

The spelling of 221133121302 in words is "two hundred twenty-one billion, one hundred thirty-three million, one hundred twenty-one thousand, three hundred two".