1011142334221 has 4 divisors (see below), whose sum is σ = 1016987087772. Its totient is φ = 1005297580672.

The previous prime is 1011142334219. The next prime is 1011142334231. The reversal of 1011142334221 is 1224332411101.

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

It can be written as a sum of positive squares in 2 ways, for example, as 389432162025 + 621710172196 = 624045^2 + 788486^2 .

It is a cyclic number.

It is not a de Polignac number, because 1011142334221 - 2¹ = 1011142334219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011142334231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2922376516 + ... + 2922376861.

It is an arithmetic number, because the mean of its divisors is an integer number (254246771943).

Almost surely, 2^{1011142334221} is an apocalyptic number.

It is an amenable number.

1011142334221 is a deficient number, since it is larger than the sum of its proper divisors (5844753551).

1011142334221 is an equidigital number, since it uses as much as digits as its factorization.

1011142334221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5844753550.

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 1011142334221 its reverse (1224332411101), we get a palindrome (2235474745322).

The spelling of 1011142334221 in words is "one trillion, eleven billion, one hundred forty-two million, three hundred thirty-four thousand, two hundred twenty-one".