122021101002109 has 2 divisors, whose sum is σ = 122021101002110. Its totient is φ = 122021101002108.

The previous prime is 122021101002091. The next prime is 122021101002131. The reversal of 122021101002109 is 901200101120221.

Together with previous prime (122021101002091) it forms an Ormiston pair, because they use the same digits, order apart.

It is an a-pointer prime, because the next prime (122021101002131) can be obtained adding 122021101002109 to its sum of digits (22).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 90466311458884 + 31554789543225 = 9511378^2 + 5617365^2 .

It is a cyclic number.

It is not a de Polignac number, because 122021101002109 - 2¹³ = 122021100993917 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122021101002109.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122021101005109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61010550501054 + 61010550501055.

It is an arithmetic number, because the mean of its divisors is an integer number (61010550501055).

Almost surely, 2^{122021101002109} is an apocalyptic number.

It is an amenable number.

122021101002109 is a deficient number, since it is larger than the sum of its proper divisors (1).

122021101002109 is an equidigital number, since it uses as much as digits as its factorization.

122021101002109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 22.

The spelling of 122021101002109 in words is "one hundred twenty-two trillion, twenty-one billion, one hundred one million, two thousand, one hundred nine".