240551132120220 has 96 divisors (see below), whose sum is σ = 691183659055680. Its totient is φ = 62472421335040.

The previous prime is 240551132120207. The next prime is 240551132120237. The reversal of 240551132120220 is 22021231155042.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 84527337 + ... + 87326816.

It is an arithmetic number, because the mean of its divisors is an integer number (7199829781830).

Almost surely, 2^{240551132120220} is an apocalyptic number.

240551132120220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

240551132120220 is an abundant number, since it is smaller than the sum of its proper divisors (450632526935460).

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

240551132120220 is a wasteful number, since it uses less digits than its factorization.

240551132120220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171854775 (or 171854773 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

Adding to 240551132120220 its reverse (22021231155042), we get a palindrome (262572363275262).

The spelling of 240551132120220 in words is "two hundred forty trillion, five hundred fifty-one billion, one hundred thirty-two million, one hundred twenty thousand, two hundred twenty".