102246921805284 has 81 divisors (see below), whose sum is σ = 258857928406441. Its totient is φ = 34029584749920.

The previous prime is 102246921805271. The next prime is 102246921805313. The reversal of 102246921805284 is 482508129642201.

It is a happy number.

The square root of 102246921805284 is 10111722.

It is a perfect power (a square), and thus also a powerful number.

102246921805284 is a `hidden beast` number, since 1 + 0 + 2 + 2 + 469 + 21 + 80 + 5 + 2 + 84 = 666.

It can be written as a sum of positive squares in only one way, i.e., 93772535038884 + 8474386766400 = 9683622^2 + 2911080^2 .

It is a super-2 number, since 2×102246921805284² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102246921805284.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 71651661379 + ... + 71651662805.

Almost surely, 2^{102246921805284} is an apocalyptic number.

102246921805284 is the 10111722-nd square number.

It is an amenable number.

102246921805284 is an abundant number, since it is smaller than the sum of its proper divisors (156611006601157).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102246921805284 is an frugal number, since it uses more digits than its factorization.

102246921805284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5226 (or 2613 counting only the distinct ones).

The product of its (nonzero) digits is 4423680, while the sum is 54.

The spelling of 102246921805284 in words is "one hundred two trillion, two hundred forty-six billion, nine hundred twenty-one million, eight hundred five thousand, two hundred eighty-four".