1201202122001 has 16 divisors (see below), whose sum is σ = 1453597428096. Its totient is φ = 969009060096.

The previous prime is 1201202121961. The next prime is 1201202122013. The reversal of 1201202122001 is 1002212021021.

It is not a de Polignac number, because 1201202122001 - 2⁶ = 1201202121937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1201202122031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4662770 + ... + 4913636.

It is an arithmetic number, because the mean of its divisors is an integer number (90849839256).

Almost surely, 2^{1201202122001} is an apocalyptic number.

It is an amenable number.

1201202122001 is a deficient number, since it is larger than the sum of its proper divisors (252395306095).

1201202122001 is a wasteful number, since it uses less digits than its factorization.

1201202122001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291128.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1201202122001 its reverse (1002212021021), we get a palindrome (2203414143022).

The spelling of 1201202122001 in words is "one trillion, two hundred one billion, two hundred two million, one hundred twenty-two thousand, one".