1211322002 has 16 divisors (see below), whose sum is σ = 2068345152. Its totient is φ = 526661520.

The previous prime is 1211321989. The next prime is 1211322019. The reversal of 1211322002 is 2002231121.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1196453 + ... + 1197464.

It is an arithmetic number, because the mean of its divisors is an integer number (129271572).

Almost surely, 2^1211322002 is an apocalyptic number.

1211322002 is a deficient number, since it is larger than the sum of its proper divisors (857023150).

1211322002 is a wasteful number, since it uses less digits than its factorization.

1211322002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2393953.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1211322002 is about 34804.0515170289. The cubic root of 1211322002 is about 1065.9901749368.

Adding to 1211322002 its reverse (2002231121), we get a palindrome (3213553123).

The spelling of 1211322002 in words is "one billion, two hundred eleven million, three hundred twenty-two thousand, two".