1111202220001 has 4 divisors (see below), whose sum is σ = 1111218750000. Its totient is φ = 1111185690004.

The previous prime is 1111202219983. The next prime is 1111202220043. The reversal of 1111202220001 is 1000222021111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1111202220001 - 2¹⁷ = 1111202088929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1111202220061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8163751 + ... + 8298748.

It is an arithmetic number, because the mean of its divisors is an integer number (277804687500).

Almost surely, 2^{1111202220001} is an apocalyptic number.

It is an amenable number.

1111202220001 is a deficient number, since it is larger than the sum of its proper divisors (16529999).

1111202220001 is an equidigital number, since it uses as much as digits as its factorization.

1111202220001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16529998.

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

Adding to 1111202220001 its reverse (1000222021111), we get a palindrome (2111424241112).

The spelling of 1111202220001 in words is "one trillion, one hundred eleven billion, two hundred two million, two hundred twenty thousand, one".