121022202220001 has 2 divisors, whose sum is σ = 121022202220002. Its totient is φ = 121022202220000.

The previous prime is 121022202219991. The next prime is 121022202220009. The reversal of 121022202220001 is 100022202220121.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68348646120976 + 52673556099025 = 8267324^2 + 7257655^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121022202220001 is a prime.

It is not a weakly prime, because it can be changed into another prime (121022202220009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60511101110000 + 60511101110001.

It is an arithmetic number, because the mean of its divisors is an integer number (60511101110001).

Almost surely, 2^{121022202220001} is an apocalyptic number.

It is an amenable number.

121022202220001 is a deficient number, since it is larger than the sum of its proper divisors (1).

121022202220001 is an equidigital number, since it uses as much as digits as its factorization.

121022202220001 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 17.

Adding to 121022202220001 its reverse (100022202220121), we get a palindrome (221044404440122).

The spelling of 121022202220001 in words is "one hundred twenty-one trillion, twenty-two billion, two hundred two million, two hundred twenty thousand, one".