10113211322221 has 4 divisors (see below), whose sum is σ = 11557955796832. Its totient is φ = 8668466847612.

The previous prime is 10113211322189. The next prime is 10113211322233. The reversal of 10113211322221 is 12222311231101.

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 10113211322221 - 2⁵ = 10113211322189 is a prime.

It is a super-3 number, since 3×10113211322221³ (a number of 40 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10113211322192 and 10113211322201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10113211322521) 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, 722372237295 + ... + 722372237308.

It is an arithmetic number, because the mean of its divisors is an integer number (2889488949208).

Almost surely, 2^{10113211322221} is an apocalyptic number.

It is an amenable number.

10113211322221 is a deficient number, since it is larger than the sum of its proper divisors (1444744474611).

10113211322221 is an equidigital number, since it uses as much as digits as its factorization.

10113211322221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1444744474610.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 10113211322221 its reverse (12222311231101), we get a palindrome (22335522553322).

The spelling of 10113211322221 in words is "ten trillion, one hundred thirteen billion, two hundred eleven million, three hundred twenty-two thousand, two hundred twenty-one".