212111133130 has 32 divisors (see below), whose sum is σ = 411222142800. Its totient is φ = 78307886592.

The previous prime is 212111133083. The next prime is 212111133133. The reversal of 212111133130 is 31331111212.

It can be written as a sum of positive squares in 8 ways, for example, as 1625621761 + 210485511369 = 40319^2 + 458787^2 .

It is a super-2 number, since 2×212111133130² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212111133098 and 212111133107.

It is not an unprimeable number, because it can be changed into a prime (212111133133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 950716 + ... + 1152424.

Almost surely, 2^212111133130 is an apocalyptic number.

212111133130 is a deficient number, since it is larger than the sum of its proper divisors (199111009670).

212111133130 is a wasteful number, since it uses less digits than its factorization.

212111133130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209818.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 212111133130 its reverse (31331111212), we get a palindrome (243442244342).

The spelling of 212111133130 in words is "two hundred twelve billion, one hundred eleven million, one hundred thirty-three thousand, one hundred thirty".