102554630244221 has 8 divisors (see below), whose sum is σ = 105056206697400. Its totient is φ = 100053065410560.

The previous prime is 102554630244193. The next prime is 102554630244301. The reversal of 102554630244221 is 122442036455201.

It can be written as a sum of positive squares in 4 ways, for example, as 21427770612196 + 81126859632025 = 4629014^2 + 9007045^2 .

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 102554630244221 - 2¹⁴ = 102554630227837 is a prime.

It is a super-2 number, since 2×102554630244221² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102554630444221) 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, 16529135 + ... + 21870563.

It is an arithmetic number, because the mean of its divisors is an integer number (13132025837175).

Almost surely, 2^{102554630244221} is an apocalyptic number.

It is an amenable number.

102554630244221 is a deficient number, since it is larger than the sum of its proper divisors (2501576453179).

102554630244221 is an equidigital number, since it uses as much as digits as its factorization.

102554630244221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5809759.

The product of its (nonzero) digits is 460800, while the sum is 41.

Adding to 102554630244221 its reverse (122442036455201), we get a palindrome (224996666699422).

The spelling of 102554630244221 in words is "one hundred two trillion, five hundred fifty-four billion, six hundred thirty million, two hundred forty-four thousand, two hundred twenty-one".