1201021110011 has 8 divisors (see below), whose sum is σ = 1268271835920. Its totient is φ = 1134174292992.

The previous prime is 1201021110007. The next prime is 1201021110017. The reversal of 1201021110011 is 1100111201021.

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

It is a cyclic number.

It is not a de Polignac number, because 1201021110011 - 2² = 1201021110007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1201021109974 and 1201021110001.

It is not an unprimeable number, because it can be changed into a prime (1201021110017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100971110 + ... + 100983003.

It is an arithmetic number, because the mean of its divisors is an integer number (158533979490).

Almost surely, 2^{1201021110011} is an apocalyptic number.

1201021110011 is a deficient number, since it is larger than the sum of its proper divisors (67250725909).

1201021110011 is a wasteful number, since it uses less digits than its factorization.

1201021110011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201954445.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 1201021110011 its reverse (1100111201021), we get a palindrome (2301132311032).

It can be divided in two parts, 1201021 and 110011, that multiplied together give a palindrome (132125521231).

The spelling of 1201021110011 in words is "one trillion, two hundred one billion, twenty-one million, one hundred ten thousand, eleven".