1201021211201 has 4 divisors (see below), whose sum is σ = 1372595669952. Its totient is φ = 1029446752452.

The previous prime is 1201021211171. The next prime is 1201021211287. The reversal of 1201021211201 is 1021121201021.

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 1201021211201 - 2³⁰ = 1199947469377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1201021211501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85787229365 + ... + 85787229378.

It is an arithmetic number, because the mean of its divisors is an integer number (343148917488).

Almost surely, 2^{1201021211201} is an apocalyptic number.

It is an amenable number.

1201021211201 is a deficient number, since it is larger than the sum of its proper divisors (171574458751).

1201021211201 is an equidigital number, since it uses as much as digits as its factorization.

1201021211201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171574458750.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1201021211201 its reverse (1021121201021), we get a palindrome (2222142412222).

The spelling of 1201021211201 in words is "one trillion, two hundred one billion, twenty-one million, two hundred eleven thousand, two hundred one".