1201001222003 has 16 divisors (see below), whose sum is σ = 1347705741312. Its totient is φ = 1060981764000.

The previous prime is 1201001221997. The next prime is 1201001222023. The reversal of 1201001222003 is 3002221001021.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1201001222003 - 2³⁰ = 1199927480179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1201001222023) by changing a digit.

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, 10726643 + ... + 10838028.

It is an arithmetic number, because the mean of its divisors is an integer number (84231608832).

Almost surely, 2^{1201001222003} is an apocalyptic number.

1201001222003 is a deficient number, since it is larger than the sum of its proper divisors (146704519309).

1201001222003 is a wasteful number, since it uses less digits than its factorization.

1201001222003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21564826.

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

Adding to 1201001222003 its reverse (3002221001021), we get a palindrome (4203222223024).

The spelling of 1201001222003 in words is "one trillion, two hundred one billion, one million, two hundred twenty-two thousand, three".