1121000220001 has 16 divisors (see below), whose sum is σ = 1197600747840. Its totient is φ = 1046232253440.

The previous prime is 1121000219959. The next prime is 1121000220049. The reversal of 1121000220001 is 1000220001211.

It is a cyclic number.

It is not a de Polignac number, because 1121000220001 - 2⁹ = 1121000219489 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1121000220001.

It is not an unprimeable number, because it can be changed into a prime (1121000226001) 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, 450180 + ... + 1563541.

It is an arithmetic number, because the mean of its divisors is an integer number (74850046740).

Almost surely, 2^{1121000220001} is an apocalyptic number.

It is an amenable number.

1121000220001 is a deficient number, since it is larger than the sum of its proper divisors (76600527839).

1121000220001 is a wasteful number, since it uses less digits than its factorization.

1121000220001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2014176.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 1121000220001 its reverse (1000220001211), we get a palindrome (2121220221212).

The spelling of 1121000220001 in words is "one trillion, one hundred twenty-one billion, two hundred twenty thousand, one".