2211108203948 has 72 divisors (see below), whose sum is σ = 4512322536960. Its totient is φ = 928687556160.

The previous prime is 2211108203947. The next prime is 2211108203951. The reversal of 2211108203948 is 8493028011122.

It is not an unprimeable number, because it can be changed into a prime (2211108203947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 71636543 + ... + 71667401.

Almost surely, 2^{2211108203948} is an apocalyptic number.

2211108203948 is a gapful number since it is divisible by the number (28) 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 2211108203948, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2256161268480).

2211108203948 is an abundant number, since it is smaller than the sum of its proper divisors (2301214333012).

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

2211108203948 is a wasteful number, since it uses less digits than its factorization.

2211108203948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31887 (or 31832 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 41.

The spelling of 2211108203948 in words is "two trillion, two hundred eleven billion, one hundred eight million, two hundred three thousand, nine hundred forty-eight".