20222120129 has 2 divisors, whose sum is σ = 20222120130. Its totient is φ = 20222120128.

The previous prime is 20222120117. The next prime is 20222120197. The reversal of 20222120129 is 92102122202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13375385104 + 6846735025 = 115652^2 + 82745^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20222120129 is a prime.

It is not a weakly prime, because it can be changed into another prime (20222120929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10111060064 + 10111060065.

It is an arithmetic number, because the mean of its divisors is an integer number (10111060065).

Almost surely, 2^20222120129 is an apocalyptic number.

It is an amenable number.

20222120129 is a deficient number, since it is larger than the sum of its proper divisors (1).

20222120129 is an equidigital number, since it uses as much as digits as its factorization.

20222120129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 23.

The spelling of 20222120129 in words is "twenty billion, two hundred twenty-two million, one hundred twenty thousand, one hundred twenty-nine".