221311020333030 has 16 divisors (see below), whose sum is σ = 531146448799344. Its totient is φ = 59016272088800.

The previous prime is 221311020333017. The next prime is 221311020333041. The reversal of 221311020333030 is 30333020113122.

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, 3688517005521 + ... + 3688517005580.

It is an arithmetic number, because the mean of its divisors is an integer number (33196653049959).

Almost surely, 2^{221311020333030} is an apocalyptic number.

221311020333030 is an abundant number, since it is smaller than the sum of its proper divisors (309835428466314).

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

221311020333030 is a wasteful number, since it uses less digits than its factorization.

221311020333030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7377034011111.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 221311020333030 its reverse (30333020113122), we get a palindrome (251644040446152).

The spelling of 221311020333030 in words is "two hundred twenty-one trillion, three hundred eleven billion, twenty million, three hundred thirty-three thousand, thirty".