121170222001 has 2 divisors, whose sum is σ = 121170222002. Its totient is φ = 121170222000.

The previous prime is 121170221999. The next prime is 121170222013. The reversal of 121170222001 is 100222071121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 91603075600 + 29567146401 = 302660^2 + 171951^2 .

It is an emirp because it is prime and its reverse (100222071121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121170222001 - 2¹ = 121170221999 is a prime.

Together with 121170221999, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 121170222001.

It is not a weakly prime, because it can be changed into another prime (121170222401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60585111000 + 60585111001.

It is an arithmetic number, because the mean of its divisors is an integer number (60585111001).

Almost surely, 2^121170222001 is an apocalyptic number.

It is an amenable number.

121170222001 is a deficient number, since it is larger than the sum of its proper divisors (1).

121170222001 is an equidigital number, since it uses as much as digits as its factorization.

121170222001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112, while the sum is 19.

Adding to 121170222001 its reverse (100222071121), we get a palindrome (221392293122).

The spelling of 121170222001 in words is "one hundred twenty-one billion, one hundred seventy million, two hundred twenty-two thousand, one".