1220012101101 has 16 divisors (see below), whose sum is σ = 1628592638400. Its totient is φ = 812386656768.

The previous prime is 1220012101093. The next prime is 1220012101117. The reversal of 1220012101101 is 1011012100221.

It is not a de Polignac number, because 1220012101101 - 2³ = 1220012101093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220012101601) 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, 47664415 + ... + 47690003.

It is an arithmetic number, because the mean of its divisors is an integer number (101787039900).

Almost surely, 2^{1220012101101} is an apocalyptic number.

It is an amenable number.

1220012101101 is a deficient number, since it is larger than the sum of its proper divisors (408580537299).

1220012101101 is a wasteful number, since it uses less digits than its factorization.

1220012101101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43628.

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

Adding to 1220012101101 its reverse (1011012100221), we get a palindrome (2231024201322).

The spelling of 1220012101101 in words is "one trillion, two hundred twenty billion, twelve million, one hundred one thousand, one hundred one".