289012211012 has 18 divisors (see below), whose sum is σ = 588346287102. Its totient is φ = 123862376064.

The previous prime is 289012211011. The next prime is 289012211021. The reversal of 289012211012 is 210112210982.

It can be written as a sum of positive squares in only one way, i.e., 280289771776 + 8722439236 = 529424^2 + 93394^2 .

It is a super-2 number, since 2×289012211012² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (289012211011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 737275853 + ... + 737276244.

It is an arithmetic number, because the mean of its divisors is an integer number (32685904839).

Almost surely, 2^289012211012 is an apocalyptic number.

It is an amenable number.

289012211012 is an abundant number, since it is smaller than the sum of its proper divisors (299334076090).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

289012211012 is a wasteful number, since it uses less digits than its factorization.

289012211012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1474552115 (or 1474552106 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 29.

Adding to 289012211012 its reverse (210112210982), we get a palindrome (499124421994).

The spelling of 289012211012 in words is "two hundred eighty-nine billion, twelve million, two hundred eleven thousand, twelve".