240551211203220 has 48 divisors (see below), whose sum is σ = 673584346487808. Its totient is φ = 64143089166720.

The previous prime is 240551211203197. The next prime is 240551211203287. The reversal of 240551211203220 is 22302112155042.

It is a super-2 number, since 2×240551211203220² (a number of 30 digits) contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 120895191 + ... + 122868830.

It is an arithmetic number, because the mean of its divisors is an integer number (14033007218496).

Almost surely, 2^{240551211203220} is an apocalyptic number.

240551211203220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

240551211203220 is an abundant number, since it is smaller than the sum of its proper divisors (433033135284588).

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

240551211203220 is a wasteful number, since it uses less digits than its factorization.

240551211203220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243780480 (or 243780478 counting only the distinct ones).

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

Adding to 240551211203220 its reverse (22302112155042), we get a palindrome (262853323358262).

The spelling of 240551211203220 in words is "two hundred forty trillion, five hundred fifty-one billion, two hundred eleven million, two hundred three thousand, two hundred twenty".