21221132301113 has 8 divisors (see below), whose sum is σ = 22253620081800. Its totient is φ = 20208692827008.

The previous prime is 21221132301053. The next prime is 21221132301119. The reversal of 21221132301113 is 31110323112212.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 151673639209 + 21069458661904 = 389453^2 + 4590148^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21221132301113 - 2¹⁰ = 21221132300089 is a prime.

It is a super-2 number, since 2×21221132301113² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21221132301119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5012074478 + ... + 5012078711.

It is an arithmetic number, because the mean of its divisors is an integer number (2781702510225).

Almost surely, 2^{21221132301113} is an apocalyptic number.

It is an amenable number.

21221132301113 is a deficient number, since it is larger than the sum of its proper divisors (1032487780687).

21221132301113 is a wasteful number, since it uses less digits than its factorization.

21221132301113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10024153291.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 21221132301113 its reverse (31110323112212), we get a palindrome (52331455413325).

The spelling of 21221132301113 in words is "twenty-one trillion, two hundred twenty-one billion, one hundred thirty-two million, three hundred one thousand, one hundred thirteen".