2121022003 has 16 divisors (see below), whose sum is σ = 2308500000. Its totient is φ = 1941864192.

The previous prime is 2121021967. The next prime is 2121022021. The reversal of 2121022003 is 3002201212.

It is not a de Polignac number, because 2121022003 - 2²⁹ = 1584151091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2121022103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94623 + ... + 114871.

It is an arithmetic number, because the mean of its divisors is an integer number (144281250).

Almost surely, 2^2121022003 is an apocalyptic number.

2121022003 is a deficient number, since it is larger than the sum of its proper divisors (187477997).

2121022003 is a wasteful number, since it uses less digits than its factorization.

2121022003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20454.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 2121022003 is about 46054.5546390365. The cubic root of 2121022003 is about 1284.8380549597.

Adding to 2121022003 its reverse (3002201212), we get a palindrome (5123223215).

The spelling of 2121022003 in words is "two billion, one hundred twenty-one million, twenty-two thousand, three".