101113011221 has 4 divisors (see below), whose sum is σ = 101125015500. Its totient is φ = 101101006944.

The previous prime is 101113011203. The next prime is 101113011253. The reversal of 101113011221 is 122110311101.

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 34824784996 + 66288226225 = 186614^2 + 257465^2 .

It is a cyclic number.

It is not a de Polignac number, because 101113011221 - 2¹⁰ = 101113010197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101113011196 and 101113011205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101113011521) 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, 5989496 + ... + 6006353.

It is an arithmetic number, because the mean of its divisors is an integer number (25281253875).

Almost surely, 2^101113011221 is an apocalyptic number.

It is an amenable number.

101113011221 is a deficient number, since it is larger than the sum of its proper divisors (12004279).

101113011221 is an equidigital number, since it uses as much as digits as its factorization.

101113011221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12004278.

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

Adding to 101113011221 its reverse (122110311101), we get a palindrome (223223322322).

The spelling of 101113011221 in words is "one hundred one billion, one hundred thirteen million, eleven thousand, two hundred twenty-one".