2121014440 has 32 divisors (see below), whose sum is σ = 4777004160. Its totient is φ = 847566400.

The previous prime is 2121014429. The next prime is 2121014459. The reversal of 2121014440 is 444101212.

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, 15525 + ... + 66955.

It is an arithmetic number, because the mean of its divisors is an integer number (149281380).

Almost surely, 2^2121014440 is an apocalyptic number.

2121014440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2121014440 is an abundant number, since it is smaller than the sum of its proper divisors (2655989720).

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

2121014440 is a wasteful number, since it uses less digits than its factorization.

2121014440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52473 (or 52469 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 2121014440 is about 46054.4725298206. The cubic root of 2121014440 is about 1284.8365278276.

Adding to 2121014440 its reverse (444101212), we get a palindrome (2565115652).

The spelling of 2121014440 in words is "two billion, one hundred twenty-one million, fourteen thousand, four hundred forty".