1201101211329 has 4 divisors (see below), whose sum is σ = 1601468281776. Its totient is φ = 800734140884.

The previous prime is 1201101211151. The next prime is 1201101211367. The reversal of 1201101211329 is 9231121011021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1201101211329 - 2²⁷ = 1200966993601 is a prime.

It is a super-2 number, since 2×1201101211329² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1201101211299 and 1201101211308.

It is not an unprimeable number, because it can be changed into a prime (1201101211829) 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 3 ways as a sum of consecutive naturals, for example, 200183535219 + ... + 200183535224.

It is an arithmetic number, because the mean of its divisors is an integer number (400367070444).

Almost surely, 2^{1201101211329} is an apocalyptic number.

It is an amenable number.

1201101211329 is a deficient number, since it is larger than the sum of its proper divisors (400367070447).

1201101211329 is an equidigital number, since it uses as much as digits as its factorization.

1201101211329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400367070446.

The product of its (nonzero) digits is 216, while the sum is 24.

The spelling of 1201101211329 in words is "one trillion, two hundred one billion, one hundred one million, two hundred eleven thousand, three hundred twenty-nine".