101113112221 has 4 divisors (see below), whose sum is σ = 110305213344. Its totient is φ = 91921011100.

The previous prime is 101113112143. The next prime is 101113112257. The reversal of 101113112221 is 122211311101.

It is a happy number.

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 101113112221 - 2⁹ = 101113111709 is a prime.

It is a super-2 number, since 2×101113112221² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101113112195 and 101113112204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101113115221) 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, 4596050545 + ... + 4596050566.

It is an arithmetic number, because the mean of its divisors is an integer number (27576303336).

Almost surely, 2^101113112221 is an apocalyptic number.

101113112221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

101113112221 is a deficient number, since it is larger than the sum of its proper divisors (9192101123).

101113112221 is an equidigital number, since it uses as much as digits as its factorization.

101113112221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9192101122.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 101113112221 its reverse (122211311101), we get a palindrome (223324423322).

The spelling of 101113112221 in words is "one hundred one billion, one hundred thirteen million, one hundred twelve thousand, two hundred twenty-one".