2121021588 has 24 divisors (see below), whose sum is σ = 5656057792. Its totient is φ = 606006144.

The previous prime is 2121021583. The next prime is 2121021611. The reversal of 2121021588 is 8851201212.

2121021588 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121021583) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12625045 + ... + 12625212.

Almost surely, 2^2121021588 is an apocalyptic number.

2121021588 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2121021588 is an abundant number, since it is smaller than the sum of its proper divisors (3535036204).

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

2121021588 is a wasteful number, since it uses less digits than its factorization.

2121021588 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25250271 (or 25250269 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 30.

The square root of 2121021588 is about 46054.5501335102. The cubic root of 2121021588 is about 1284.8379711623.

The spelling of 2121021588 in words is "two billion, one hundred twenty-one million, twenty-one thousand, five hundred eighty-eight".