1121220102001 has 16 divisors (see below), whose sum is σ = 1184971507200. Its totient is φ = 1058723347968.

The previous prime is 1121220101987. The next prime is 1121220102017. The reversal of 1121220102001 is 1002010221211.

It is a cyclic number.

It is not a de Polignac number, because 1121220102001 - 2¹³ = 1121220093809 is a prime.

It is a super-2 number, since 2×1121220102001² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121220102701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11888905 + ... + 11982841.

It is an arithmetic number, because the mean of its divisors is an integer number (74060719200).

Almost surely, 2^{1121220102001} is an apocalyptic number.

It is an amenable number.

1121220102001 is a deficient number, since it is larger than the sum of its proper divisors (63751405199).

1121220102001 is an equidigital number, since it uses as much as digits as its factorization.

1121220102001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100608.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1121220102001 its reverse (1002010221211), we get a palindrome (2123230323212).

It can be divided in two parts, 1121220 and 102001, that added together give a palindrome (1223221).

The spelling of 1121220102001 in words is "one trillion, one hundred twenty-one billion, two hundred twenty million, one hundred two thousand, one".