1212050129 has 2 divisors, whose sum is σ = 1212050130. Its totient is φ = 1212050128.

The previous prime is 1212050123. The next prime is 1212050137. The reversal of 1212050129 is 9210502121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1071580225 + 140469904 = 32735^2 + 11852^2 .

It is an emirp because it is prime and its reverse (9210502121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1212050129 - 2¹⁶ = 1211984593 is a prime.

It is not a weakly prime, because it can be changed into another prime (1212050123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606025064 + 606025065.

It is an arithmetic number, because the mean of its divisors is an integer number (606025065).

Almost surely, 2^1212050129 is an apocalyptic number.

It is an amenable number.

1212050129 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212050129 is an equidigital number, since it uses as much as digits as its factorization.

1212050129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 23.

The square root of 1212050129 is about 34814.5103225652. The cubic root of 1212050129 is about 1066.2037214473.

The spelling of 1212050129 in words is "one billion, two hundred twelve million, fifty thousand, one hundred twenty-nine".