1201121213301 has 32 divisors (see below), whose sum is σ = 1783415105280. Its totient is φ = 798959766528.

The previous prime is 1201121213287. The next prime is 1201121213417. The reversal of 1201121213301 is 1033121211021.

1201121213301 is a `hidden beast` number, since 1 + 201 + 12 + 121 + 330 + 1 = 666.

It is not a de Polignac number, because 1201121213301 - 2²³ = 1201112824693 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201121213101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28249080 + ... + 28291566.

It is an arithmetic number, because the mean of its divisors is an integer number (55731722040).

Almost surely, 2^{1201121213301} is an apocalyptic number.

It is an amenable number.

1201121213301 is a deficient number, since it is larger than the sum of its proper divisors (582293891979).

1201121213301 is a wasteful number, since it uses less digits than its factorization.

1201121213301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44810 (or 44804 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 1201121213301 its reverse (1033121211021), we get a palindrome (2234242424322).

The spelling of 1201121213301 in words is "one trillion, two hundred one billion, one hundred twenty-one million, two hundred thirteen thousand, three hundred one".