102212302112021 has 2 divisors, whose sum is σ = 102212302112022. Its totient is φ = 102212302112020.

The previous prime is 102212302111979. The next prime is 102212302112099. The reversal of 102212302112021 is 120211203212201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 100546524689521 + 1665777422500 = 10027289^2 + 1290650^2 .

It is a cyclic number.

It is not a de Polignac number, because 102212302112021 - 2¹⁴ = 102212302095637 is a prime.

It is a super-4 number, since 4×102212302112021⁴ (a number of 57 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102212302111984 and 102212302112002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102212302112321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51106151056010 + 51106151056011.

It is an arithmetic number, because the mean of its divisors is an integer number (51106151056011).

Almost surely, 2^{102212302112021} is an apocalyptic number.

It is an amenable number.

102212302112021 is a deficient number, since it is larger than the sum of its proper divisors (1).

102212302112021 is an equidigital number, since it uses as much as digits as its factorization.

102212302112021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 102212302112021 its reverse (120211203212201), we get a palindrome (222423505324222).

The spelling of 102212302112021 in words is "one hundred two trillion, two hundred twelve billion, three hundred two million, one hundred twelve thousand, twenty-one".