1211000000002 has 32 divisors (see below), whose sum is σ = 1969337728512. Its totient is φ = 555182973504.

The previous prime is 1210999999933. The next prime is 1211000000099. The reversal of 1211000000002 is 2000000001121.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6080668 + ... + 6276664.

It is an arithmetic number, because the mean of its divisors is an integer number (61541804016).

Almost surely, 2^{1211000000002} is an apocalyptic number.

1211000000002 is a deficient number, since it is larger than the sum of its proper divisors (758337728510).

1211000000002 is a wasteful number, since it uses less digits than its factorization.

1211000000002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197602.

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 1211000000002 its reverse (2000000001121), we get a palindrome (3211000001123).

The spelling of 1211000000002 in words is "one trillion, two hundred eleven billion, two", and thus it is an aban number.