1202220212129 has 2 divisors, whose sum is σ = 1202220212130.
Its totient is φ = 1202220212128.
The previous prime is 1202220212111. The next prime is 1202220212131. The reversal of 1202220212129 is 9212120222021.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 1184074775104 + 18145437025 = 1088152^2 + 134705^2
It is a cyclic number.
It is not a de Polignac number, because 1202220212129 - 216 = 1202220146593 is a prime.
Together with 1202220212131, it forms a pair of twin primes.
It is a Chen prime.
It is a junction number, because it is equal to n+sod(n) for n = 1202220212098 and 1202220212107.
It is not a weakly prime, because it can be changed into another prime (1202220212429) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601110106064 + 601110106065.
It is an arithmetic number, because the mean of its divisors is an integer number (601110106065).
Almost surely, 21202220212129 is an apocalyptic number.
It is an amenable number.
1202220212129 is a deficient number, since it is larger than the sum of its proper divisors (1).
1202220212129 is an equidigital number, since it uses as much as digits as its factorization.
1202220212129 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 1152, while the sum is 26.
The spelling of 1202220212129 in words is "one trillion, two hundred two billion, two hundred twenty million, two hundred twelve thousand, one hundred twenty-nine".