102212006021 has 2 divisors, whose sum is σ = 102212006022. Its totient is φ = 102212006020.

The previous prime is 102212006011. The next prime is 102212006023. The reversal of 102212006021 is 120600212201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73029117121 + 29182888900 = 270239^2 + 170830^2 .

It is a cyclic number.

It is not a de Polignac number, because 102212006021 - 2¹⁰ = 102212004997 is a prime.

Together with 102212006023, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102212006023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51106003010 + 51106003011.

It is an arithmetic number, because the mean of its divisors is an integer number (51106003011).

Almost surely, 2^102212006021 is an apocalyptic number.

It is an amenable number.

102212006021 is a deficient number, since it is larger than the sum of its proper divisors (1).

102212006021 is an equidigital number, since it uses as much as digits as its factorization.

102212006021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 102212006021 its reverse (120600212201), we get a palindrome (222812218222).

The spelling of 102212006021 in words is "one hundred two billion, two hundred twelve million, six thousand, twenty-one".