212003121130 has 16 divisors (see below), whose sum is σ = 382586616360. Its totient is φ = 84583248832.

The previous prime is 212003121119. The next prime is 212003121131. The reversal of 212003121130 is 31121300212.

It can be written as a sum of positive squares in 4 ways, for example, as 184031562121 + 27971559009 = 428989^2 + 167247^2 .

It is a super-2 number, since 2×212003121130² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (212003121131) 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 in 7 ways as a sum of consecutive naturals, for example, 27245869 + ... + 27253648.

Almost surely, 2^212003121130 is an apocalyptic number.

212003121130 is a deficient number, since it is larger than the sum of its proper divisors (170583495230).

212003121130 is a wasteful number, since it uses less digits than its factorization.

212003121130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54499913.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 212003121130 its reverse (31121300212), we get a palindrome (243124421342).

The spelling of 212003121130 in words is "two hundred twelve billion, three million, one hundred twenty-one thousand, one hundred thirty".