2121222002 has 16 divisors (see below), whose sum is σ = 3262369824. Its totient is φ = 1033812000.

The previous prime is 2121221941. The next prime is 2121222011. The reversal of 2121222002 is 2002221212.

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, 84977 + ... + 107067.

It is an arithmetic number, because the mean of its divisors is an integer number (203898114).

Almost surely, 2^2121222002 is an apocalyptic number.

2121222002 is a deficient number, since it is larger than the sum of its proper divisors (1141147822).

2121222002 is a wasteful number, since it uses less digits than its factorization.

2121222002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23305.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 2121222002 is about 46056.7259148976. The cubic root of 2121222002 is about 1284.8784377326.

Adding to 2121222002 its reverse (2002221212), we get a palindrome (4123443214).

The spelling of 2121222002 in words is "two billion, one hundred twenty-one million, two hundred twenty-two thousand, two".