2180022511820 has 96 divisors (see below), whose sum is σ = 4681934078976. Its totient is φ = 852440825600.

The previous prime is 2180022511811. The next prime is 2180022511829. The reversal of 2180022511820 is 281152200812.

It is an interprime number because it is at equal distance from previous prime (2180022511811) and next prime (2180022511829).

It is not an unprimeable number, because it can be changed into a prime (2180022511829) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 254285054 + ... + 254293626.

It is an arithmetic number, because the mean of its divisors is an integer number (48770146656).

Almost surely, 2^{2180022511820} is an apocalyptic number.

2180022511820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2180022511820 is an abundant number, since it is smaller than the sum of its proper divisors (2501911567156).

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

2180022511820 is a wasteful number, since it uses less digits than its factorization.

2180022511820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10151 (or 10149 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 32.

The spelling of 2180022511820 in words is "two trillion, one hundred eighty billion, twenty-two million, five hundred eleven thousand, eight hundred twenty".