1211012002 has 8 divisors (see below), whose sum is σ = 1843630416. Its totient is φ = 596468532.

The previous prime is 1211011951. The next prime is 1211012021. The reversal of 1211012002 is 2002101121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1211012002.

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 3 ways as a sum of consecutive naturals, for example, 4518568 + ... + 4518835.

It is an arithmetic number, because the mean of its divisors is an integer number (230453802).

Almost surely, 2^1211012002 is an apocalyptic number.

1211012002 is a deficient number, since it is larger than the sum of its proper divisors (632618414).

1211012002 is an equidigital number, since it uses as much as digits as its factorization.

1211012002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9037472.

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

The square root of 1211012002 is about 34799.5977275600. The cubic root of 1211012002 is about 1065.8992315576.

Adding to 1211012002 its reverse (2002101121), we get a palindrome (3213113123).

The spelling of 1211012002 in words is "one billion, two hundred eleven million, twelve thousand, two".