2221121002 has 16 divisors (see below), whose sum is σ = 3373850592. Its totient is φ = 1096520400.

The previous prime is 2221120999. The next prime is 2221121051. The reversal of 2221121002 is 2001211222.

It is a happy number.

2221121002 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 386752 + ... + 392452.

It is an arithmetic number, because the mean of its divisors is an integer number (210865662).

Almost surely, 2^2221121002 is an apocalyptic number.

2221121002 is a deficient number, since it is larger than the sum of its proper divisors (1152729590).

2221121002 is a wasteful number, since it uses less digits than its factorization.

2221121002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8133.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 2221121002 is about 47128.7704274151. The cubic root of 2221121002 is about 1304.7402882028.

Adding to 2221121002 its reverse (2001211222), we get a palindrome (4222332224).

The spelling of 2221121002 in words is "two billion, two hundred twenty-one million, one hundred twenty-one thousand, two".