1200122002 has 16 divisors (see below), whose sum is σ = 1850805792. Its totient is φ = 583319520.

The previous prime is 1200121963. The next prime is 1200122039. The reversal of 1200122002 is 2002210021.

It is a self number, because there is not a number n which added to its sum of digits gives 1200122002.

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, 14923 + ... + 51214.

It is an arithmetic number, because the mean of its divisors is an integer number (115675362).

Almost surely, 2^1200122002 is an apocalyptic number.

1200122002 is a deficient number, since it is larger than the sum of its proper divisors (650683790).

1200122002 is a wasteful number, since it uses less digits than its factorization.

1200122002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66393.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 1200122002 is about 34642.7770538102. Note that the first 3 decimals coincide. The cubic root of 1200122002 is about 1062.6945808708.

Adding to 1200122002 its reverse (2002210021), we get a palindrome (3202332023).

The spelling of 1200122002 in words is "one billion, two hundred million, one hundred twenty-two thousand, two".