221311020333102 has 32 divisors (see below), whose sum is σ = 518191657369344. Its totient is φ = 61689483019200.

The previous prime is 221311020333083. The next prime is 221311020333127. The reversal of 221311020333102 is 201333020113122.

221311020333102 is digitally balanced in base 2, 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 15 ways as a sum of consecutive naturals, for example, 64259876424 + ... + 64259879867.

It is an arithmetic number, because the mean of its divisors is an integer number (16193489292792).

Almost surely, 2^{221311020333102} is an apocalyptic number.

221311020333102 is an abundant number, since it is smaller than the sum of its proper divisors (296880637036242).

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

221311020333102 is a wasteful number, since it uses less digits than its factorization.

221311020333102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128519756344.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 221311020333102 its reverse (201333020113122), we get a palindrome (422644040446224).

The spelling of 221311020333102 in words is "two hundred twenty-one trillion, three hundred eleven billion, twenty million, three hundred thirty-three thousand, one hundred two".