2215554054220 has 384 divisors, whose sum is σ = 5491492651008. Its totient is φ = 744102374400.

The previous prime is 2215554054187. The next prime is 2215554054239. The reversal of 2215554054220 is 224504555122.

2215554054220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 2215554054220.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 4785213709 + ... + 4785214171.

It is an arithmetic number, because the mean of its divisors is an integer number (14300762112).

Almost surely, 2^{2215554054220} is an apocalyptic number.

2215554054220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2215554054220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2745746325504).

2215554054220 is an abundant number, since it is smaller than the sum of its proper divisors (3275938596788).

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

2215554054220 is a wasteful number, since it uses less digits than its factorization.

2215554054220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 933 (or 931 counting only the distinct ones).

The product of its (nonzero) digits is 160000, while the sum is 37.

The spelling of 2215554054220 in words is "two trillion, two hundred fifteen billion, five hundred fifty-four million, fifty-four thousand, two hundred twenty".