2216197838980 has 24 divisors (see below), whose sum is σ = 4654282915800. Its totient is φ = 886428192000.

The previous prime is 2216197838927. The next prime is 2216197838993. The reversal of 2216197838980 is 898387916122.

It can be written as a sum of positive squares in 4 ways, for example, as 1022331298816 + 1193866540164 = 1011104^2 + 1092642^2 .

It is a super-2 number, since 2×2216197838980² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2826271 + ... + 3524230.

It is an arithmetic number, because the mean of its divisors is an integer number (193928454825).

Almost surely, 2^{2216197838980} is an apocalyptic number.

2216197838980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2216197838980 is an abundant number, since it is smaller than the sum of its proper divisors (2438085076820).

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

2216197838980 is a wasteful number, since it uses less digits than its factorization.

2216197838980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6367959 (or 6367957 counting only the distinct ones).

The product of its (nonzero) digits is 20901888, while the sum is 64.

The spelling of 2216197838980 in words is "two trillion, two hundred sixteen billion, one hundred ninety-seven million, eight hundred thirty-eight thousand, nine hundred eighty".