21484226900 has 18 divisors (see below), whose sum is σ = 46620772590. Its totient is φ = 8593690720.

The previous prime is 21484226893. The next prime is 21484226921. The reversal of 21484226900 is 962248412.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 1619579536 + 19864647364 = 40244^2 + 140942^2 .

It is a super-2 number, since 2×21484226900² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 107421035 + ... + 107421234.

Almost surely, 2^21484226900 is an apocalyptic number.

21484226900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21484226900 is an abundant number, since it is smaller than the sum of its proper divisors (25136545690).

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

21484226900 is a wasteful number, since it uses less digits than its factorization.

21484226900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214842283 (or 214842276 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 38.

The spelling of 21484226900 in words is "twenty-one billion, four hundred eighty-four million, two hundred twenty-six thousand, nine hundred".