2211421040 has 20 divisors (see below), whose sum is σ = 5141554104. Its totient is φ = 884568384.

The previous prime is 2211421033. The next prime is 2211421063. The reversal of 2211421040 is 401241122.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 13821302 + ... + 13821461.

Almost surely, 2^2211421040 is an apocalyptic number.

2211421040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2211421040 is an abundant number, since it is smaller than the sum of its proper divisors (2930133064).

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

2211421040 is a wasteful number, since it uses less digits than its factorization.

2211421040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27642776 (or 27642770 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 2211421040 is about 47025.7486915413. The cubic root of 2211421040 is about 1302.8381856953.

Adding to 2211421040 its reverse (401241122), we get a palindrome (2612662162).

The spelling of 2211421040 in words is "two billion, two hundred eleven million, four hundred twenty-one thousand, forty".