2121011002 has 16 divisors (see below), whose sum is σ = 3653416800. Its totient is φ = 913353840.

The previous prime is 2121010973. The next prime is 2121011071. The reversal of 2121011002 is 2001101212.

It is a self number, because there is not a number n which added to its sum of digits gives 2121011002.

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, 2536677 + ... + 2537512.

It is an arithmetic number, because the mean of its divisors is an integer number (228338550).

Almost surely, 2^2121011002 is an apocalyptic number.

2121011002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2121011002 is a deficient number, since it is larger than the sum of its proper divisors (1532405798).

2121011002 is a wasteful number, since it uses less digits than its factorization.

2121011002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5074221.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 2121011002 is about 46054.4352044404. The cubic root of 2121011002 is about 1284.8358336205.

Adding to 2121011002 its reverse (2001101212), we get a palindrome (4122112214).

The spelling of 2121011002 in words is "two billion, one hundred twenty-one million, eleven thousand, two".