1201021110211 has 8 divisors (see below), whose sum is σ = 1294590720080. Its totient is φ = 1107620553312.

The previous prime is 1201021110187. The next prime is 1201021110241. The reversal of 1201021110211 is 1120111201021.

It is a happy number.

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

It is not a de Polignac number, because 1201021110211 - 2¹⁹ = 1201020585923 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1201021110191 and 1201021110200.

It is not an unprimeable number, because it can be changed into a prime (1201021110241) 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 7 ways as a sum of consecutive naturals, for example, 42248481 + ... + 42276898.

It is an arithmetic number, because the mean of its divisors is an integer number (161823840010).

Almost surely, 2^{1201021110211} is an apocalyptic number.

1201021110211 is a deficient number, since it is larger than the sum of its proper divisors (93569609869).

1201021110211 is a wasteful number, since it uses less digits than its factorization.

1201021110211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84526485.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1201021110211 its reverse (1120111201021), we get a palindrome (2321132311232).

The spelling of 1201021110211 in words is "one trillion, two hundred one billion, twenty-one million, one hundred ten thousand, two hundred eleven".