1201110211011 has 8 divisors (see below), whose sum is σ = 1601557614784. Its totient is φ = 800701473960.

The previous prime is 1201110211003. The next prime is 1201110211031. The reversal of 1201110211011 is 1101120111021.

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

It is not a de Polignac number, because 1201110211011 - 2³ = 1201110211003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1201110211031) 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, 9594121 + ... + 9718506.

It is an arithmetic number, because the mean of its divisors is an integer number (200194701848).

Almost surely, 2^{1201110211011} is an apocalyptic number.

1201110211011 is a deficient number, since it is larger than the sum of its proper divisors (400447403773).

1201110211011 is a wasteful number, since it uses less digits than its factorization.

1201110211011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19333361.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 1201110211011 its reverse (1101120111021), we get a palindrome (2302230322032).

The spelling of 1201110211011 in words is "one trillion, two hundred one billion, one hundred ten million, two hundred eleven thousand, eleven".