1111221020201 has 16 divisors (see below), whose sum is σ = 1145985977664. Its totient is φ = 1076881950144.

The previous prime is 1111221020123. The next prime is 1111221020243. The reversal of 1111221020201 is 1020201221111.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1111221020201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1111221028201) 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, 4490435 + ... + 4731431.

It is an arithmetic number, because the mean of its divisors is an integer number (71624123604).

Almost surely, 2^{1111221020201} is an apocalyptic number.

It is an amenable number.

1111221020201 is a deficient number, since it is larger than the sum of its proper divisors (34764957463).

1111221020201 is a wasteful number, since it uses less digits than its factorization.

1111221020201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241880.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1111221020201 its reverse (1020201221111), we get a palindrome (2131422241312).

The spelling of 1111221020201 in words is "one trillion, one hundred eleven billion, two hundred twenty-one million, twenty thousand, two hundred one".