220311152220 has 24 divisors (see below), whose sum is σ = 616871226384. Its totient is φ = 58749640576.

The previous prime is 220311152209. The next prime is 220311152233. The reversal of 220311152220 is 22251113022.

220311152220 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 pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1835926209 + ... + 1835926328.

It is an arithmetic number, because the mean of its divisors is an integer number (25702967766).

Almost surely, 2^220311152220 is an apocalyptic number.

220311152220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220311152220 is an abundant number, since it is smaller than the sum of its proper divisors (396560074164).

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

220311152220 is a wasteful number, since it uses less digits than its factorization.

220311152220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3671852549 (or 3671852547 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 220311152220 its reverse (22251113022), we get a palindrome (242562265242).

The spelling of 220311152220 in words is "two hundred twenty billion, three hundred eleven million, one hundred fifty-two thousand, two hundred twenty".