111001111021201 has 4 divisors (see below), whose sum is σ = 111008259945792. Its totient is φ = 110993962096612.

The previous prime is 111001111021153. The next prime is 111001111021253. The reversal of 111001111021201 is 102120111100111.

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 111001111021201 - 2¹¹ = 111001111019153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111001111021901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3574439005 + ... + 3574470058.

It is an arithmetic number, because the mean of its divisors is an integer number (27752064986448).

Almost surely, 2^{111001111021201} is an apocalyptic number.

It is an amenable number.

111001111021201 is a deficient number, since it is larger than the sum of its proper divisors (7148924591).

111001111021201 is an equidigital number, since it uses as much as digits as its factorization.

111001111021201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7148924590.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 111001111021201 its reverse (102120111100111), we get a palindrome (213121222121312).

It can be divided in two parts, 11100111 and 1021201, that multiplied together give a palindrome (11335444453311).

The spelling of 111001111021201 in words is "one hundred eleven trillion, one billion, one hundred eleven million, twenty-one thousand, two hundred one".