2220312240020 has 48 divisors (see below), whose sum is σ = 5331613381248. Its totient is φ = 760840767360.

The previous prime is 2220312239989. The next prime is 2220312240037. The reversal of 2220312240020 is 200422130222.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 2220312239974 and 2220312240001.

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, 4000442 + ... + 4521521.

It is an arithmetic number, because the mean of its divisors is an integer number (111075278776).

Almost surely, 2^{2220312240020} is an apocalyptic number.

2220312240020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2220312240020 is an abundant number, since it is smaller than the sum of its proper divisors (3111301141228).

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

2220312240020 is a wasteful number, since it uses less digits than its factorization.

2220312240020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8523840 (or 8523838 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 2220312240020 its reverse (200422130222), we get a palindrome (2420734370242).

The spelling of 2220312240020 in words is "two trillion, two hundred twenty billion, three hundred twelve million, two hundred forty thousand, twenty".