1013221001111 has 4 divisors (see below), whose sum is σ = 1105332001224. Its totient is φ = 921110001000.

The previous prime is 1013221001057. The next prime is 1013221001183. The reversal of 1013221001111 is 1111001223101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1013221001111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1013221001311) 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, 46055500040 + ... + 46055500061.

It is an arithmetic number, because the mean of its divisors is an integer number (276333000306).

Almost surely, 2^{1013221001111} is an apocalyptic number.

1013221001111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1013221001111 is a deficient number, since it is larger than the sum of its proper divisors (92111000113).

1013221001111 is an equidigital number, since it uses as much as digits as its factorization.

1013221001111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92111000112.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 1013221001111 its reverse (1111001223101), we get a palindrome (2124222224212).

The spelling of 1013221001111 in words is "one trillion, thirteen billion, two hundred twenty-one million, one thousand, one hundred eleven".