2009220129 has 24 divisors (see below), whose sum is σ = 3397709952. Its totient is φ = 1120121280.

The previous prime is 2009220127. The next prime is 2009220167. The reversal of 2009220129 is 9210229002.

It is not a de Polignac number, because 2009220129 - 2¹ = 2009220127 is a prime.

It is a super-3 number, since 3×2009220129³ (a number of 29 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (2009220121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 386349 + ... + 391514.

It is an arithmetic number, because the mean of its divisors is an integer number (141571248).

Almost surely, 2^2009220129 is an apocalyptic number.

It is an amenable number.

2009220129 is a deficient number, since it is larger than the sum of its proper divisors (1388489823).

2009220129 is a wasteful number, since it uses less digits than its factorization.

2009220129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 777917 (or 777914 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 2009220129 is about 44824.3251929128. The cubic root of 2009220129 is about 1261.8541880689.

The spelling of 2009220129 in words is "two billion, nine million, two hundred twenty thousand, one hundred twenty-nine".