121222002122101 has 2 divisors, whose sum is σ = 121222002122102. Its totient is φ = 121222002122100.

The previous prime is 121222002121999. The next prime is 121222002122107. The reversal of 121222002122101 is 101221200222121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 77893880714001 + 43328121408100 = 8825751^2 + 6582410^2 .

It is a cyclic number.

It is not a de Polignac number, because 121222002122101 - 2¹⁷ = 121222001991029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121222002122107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60611001061050 + 60611001061051.

It is an arithmetic number, because the mean of its divisors is an integer number (60611001061051).

Almost surely, 2^{121222002122101} is an apocalyptic number.

It is an amenable number.

121222002122101 is a deficient number, since it is larger than the sum of its proper divisors (1).

121222002122101 is an equidigital number, since it uses as much as digits as its factorization.

121222002122101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 121222002122101 its reverse (101221200222121), we get a palindrome (222443202344222).

The spelling of 121222002122101 in words is "one hundred twenty-one trillion, two hundred twenty-two billion, two million, one hundred twenty-two thousand, one hundred one".