2120001229 has 2 divisors, whose sum is σ = 2120001230. Its totient is φ = 2120001228.

The previous prime is 2120001197. The next prime is 2120001263. The reversal of 2120001229 is 9221000212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2074802500 + 45198729 = 45550^2 + 6723^2 .

It is a cyclic number.

It is not a de Polignac number, because 2120001229 - 2⁵ = 2120001197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2120005229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060000614 + 1060000615.

It is an arithmetic number, because the mean of its divisors is an integer number (1060000615).

Almost surely, 2^2120001229 is an apocalyptic number.

It is an amenable number.

2120001229 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120001229 is an equidigital number, since it uses as much as digits as its factorization.

2120001229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 2120001229 is about 46043.4710789706. The cubic root of 2120001229 is about 1284.6319059534.

The spelling of 2120001229 in words is "two billion, one hundred twenty million, one thousand, two hundred twenty-nine".