1201021102011 has 16 divisors (see below), whose sum is σ = 1657141408800. Its totient is φ = 772809451008.

The previous prime is 1201021102007. The next prime is 1201021102013. The reversal of 1201021102011 is 1102011201021.

It is not a de Polignac number, because 1201021102011 - 2² = 1201021102007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1201021102013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2077006 + ... + 2591523.

It is an arithmetic number, because the mean of its divisors is an integer number (103571338050).

Almost surely, 2^{1201021102011} is an apocalyptic number.

1201021102011 is a deficient number, since it is larger than the sum of its proper divisors (456120306789).

1201021102011 is a wasteful number, since it uses less digits than its factorization.

1201021102011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4671518.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1201021102011 its reverse (1102011201021), we get a palindrome (2303032303032).

The spelling of 1201021102011 in words is "one trillion, two hundred one billion, twenty-one million, one hundred two thousand, eleven".