102021020022109 has 2 divisors, whose sum is σ = 102021020022110. Its totient is φ = 102021020022108.

The previous prime is 102021020022091. The next prime is 102021020022133. The reversal of 102021020022109 is 901220020120201.

Together with previous prime (102021020022091) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 101995658504100 + 25361518009 = 10099290^2 + 159253^2 .

It is an emirp because it is prime and its reverse (901220020120201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 102021020022109 - 2⁷ = 102021020021981 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102021020022109.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102021020422109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51010510011054 + 51010510011055.

It is an arithmetic number, because the mean of its divisors is an integer number (51010510011055).

Almost surely, 2^{102021020022109} is an apocalyptic number.

It is an amenable number.

102021020022109 is a deficient number, since it is larger than the sum of its proper divisors (1).

102021020022109 is an equidigital number, since it uses as much as digits as its factorization.

102021020022109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 22.

The spelling of 102021020022109 in words is "one hundred two trillion, twenty-one billion, twenty million, twenty-two thousand, one hundred nine".