102220013101321 has 4 divisors (see below), whose sum is σ = 102228274651972. Its totient is φ = 102211751550672.

The previous prime is 102220013101231. The next prime is 102220013101439. The reversal of 102220013101321 is 123101310022201.

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 26147514079296 + 76072499022025 = 5113464^2 + 8721955^2 .

It is a cyclic number.

It is not a de Polignac number, because 102220013101321 - 2¹¹ = 102220013099273 is a prime.

It is a super-2 number, since 2×102220013101321² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102220013101121) 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, 4130756766 + ... + 4130781511.

It is an arithmetic number, because the mean of its divisors is an integer number (25557068662993).

Almost surely, 2^{102220013101321} is an apocalyptic number.

It is an amenable number.

102220013101321 is a deficient number, since it is larger than the sum of its proper divisors (8261550651).

102220013101321 is an equidigital number, since it uses as much as digits as its factorization.

102220013101321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8261550650.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 102220013101321 its reverse (123101310022201), we get a palindrome (225321323123522).

The spelling of 102220013101321 in words is "one hundred two trillion, two hundred twenty billion, thirteen million, one hundred one thousand, three hundred twenty-one".