1203202121001 has 8 divisors (see below), whose sum is σ = 1698638288544. Its totient is φ = 754950350400.

The previous prime is 1203202120957. The next prime is 1203202121027. The reversal of 1203202121001 is 1001212023021.

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

It is not a de Polignac number, because 1203202121001 - 2¹¹ = 1203202118953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1203202123001) 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 7 ways as a sum of consecutive naturals, for example, 11796099175 + ... + 11796099276.

It is an arithmetic number, because the mean of its divisors is an integer number (212329786068).

Almost surely, 2^{1203202121001} is an apocalyptic number.

It is an amenable number.

1203202121001 is a deficient number, since it is larger than the sum of its proper divisors (495436167543).

1203202121001 is a wasteful number, since it uses less digits than its factorization.

1203202121001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23592198471.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 1203202121001 its reverse (1001212023021), we get a palindrome (2204414144022).

The spelling of 1203202121001 in words is "one trillion, two hundred three billion, two hundred two million, one hundred twenty-one thousand, one".