2212863909880 has 128 divisors (see below), whose sum is σ = 5401185753600. Its totient is φ = 811084608000.

The previous prime is 2212863909871. The next prime is 2212863909923. The reversal of 2212863909880 is 889093682122.

It is a super-2 number, since 2×2212863909880² (a number of 25 digits) contains 22 as substring.

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, 123345951 + ... + 123363889.

It is an arithmetic number, because the mean of its divisors is an integer number (42196763700).

Almost surely, 2^{2212863909880} is an apocalyptic number.

2212863909880 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 2212863909880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2700592876800).

2212863909880 is an abundant number, since it is smaller than the sum of its proper divisors (3188321843720).

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

2212863909880 is a wasteful number, since it uses less digits than its factorization.

2212863909880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19685 (or 19681 counting only the distinct ones).

The product of its (nonzero) digits is 5971968, while the sum is 58.

The spelling of 2212863909880 in words is "two trillion, two hundred twelve billion, eight hundred sixty-three million, nine hundred nine thousand, eight hundred eighty".