233020111220 has 48 divisors (see below), whose sum is σ = 554719952640. Its totient is φ = 81509867136.

The previous prime is 233020111217. The next prime is 233020111271. The reversal of 233020111220 is 22111020332.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23580092 + ... + 23589971.

It is an arithmetic number, because the mean of its divisors is an integer number (11556665680).

Almost surely, 2^233020111220 is an apocalyptic number.

233020111220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

233020111220 is an abundant number, since it is smaller than the sum of its proper divisors (321699841420).

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

233020111220 is a wasteful number, since it uses less digits than its factorization.

233020111220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47170104 (or 47170102 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 233020111220 its reverse (22111020332), we get a palindrome (255131131552).

The spelling of 233020111220 in words is "two hundred thirty-three billion, twenty million, one hundred eleven thousand, two hundred twenty".