2121014004 has 24 divisors (see below), whose sum is σ = 5209508640. Its totient is φ = 669793824.

The previous prime is 2121013991. The next prime is 2121014029. The reversal of 2121014004 is 4004101212.

It is a super-2 number, since 2×2121014004² = 8997400810328224032, which contains 22 as substring.

It is a congruent number.

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, 4651119 + ... + 4651574.

It is an arithmetic number, because the mean of its divisors is an integer number (217062860).

Almost surely, 2^2121014004 is an apocalyptic number.

It is an amenable number.

2121014004 is an abundant number, since it is smaller than the sum of its proper divisors (3088494636).

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

2121014004 is a wasteful number, since it uses less digits than its factorization.

2121014004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9302719 (or 9302717 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 2121014004 is about 46054.4677962953. The cubic root of 2121014004 is about 1284.8364397898.

Adding to 2121014004 its reverse (4004101212), we get a palindrome (6125115216).

The spelling of 2121014004 in words is "two billion, one hundred twenty-one million, fourteen thousand, four".