102021212110061 has 2 divisors, whose sum is σ = 102021212110062. Its totient is φ = 102021212110060.

The previous prime is 102021212109997. The next prime is 102021212110123. The reversal of 102021212110061 is 160011212120201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 101711642277961 + 309569832100 = 10085219^2 + 556390^2 .

It is a cyclic number.

It is not a de Polignac number, because 102021212110061 - 2⁶ = 102021212109997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102021212110661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51010606055030 + 51010606055031.

It is an arithmetic number, because the mean of its divisors is an integer number (51010606055031).

Almost surely, 2^{102021212110061} is an apocalyptic number.

It is an amenable number.

102021212110061 is a deficient number, since it is larger than the sum of its proper divisors (1).

102021212110061 is an equidigital number, since it uses as much as digits as its factorization.

102021212110061 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 20.

Adding to 102021212110061 its reverse (160011212120201), we get a palindrome (262032424230262).

The spelling of 102021212110061 in words is "one hundred two trillion, twenty-one billion, two hundred twelve million, one hundred ten thousand, sixty-one".