2111100221000 has 32 divisors (see below), whose sum is σ = 4939974519480. Its totient is φ = 844440088000.

The previous prime is 2111100220987. The next prime is 2111100221017. The reversal of 2111100221000 is 1220011112.

It can be written as a sum of positive squares in 4 ways, for example, as 503818879204 + 1607281341796 = 709802^2 + 1267786^2 .

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, 1055549111 + ... + 1055551110.

Almost surely, 2^{2111100221000} is an apocalyptic number.

2111100221000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2111100221000 is an abundant number, since it is smaller than the sum of its proper divisors (2828874298480).

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

2111100221000 is a wasteful number, since it uses less digits than its factorization.

2111100221000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2111100242 (or 2111100228 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 2111100221000 its reverse (1220011112), we get a palindrome (2112320232112).

The spelling of 2111100221000 in words is "two trillion, one hundred eleven billion, one hundred million, two hundred twenty-one thousand".