212013130122 has 24 divisors (see below), whose sum is σ = 459606587076. Its totient is φ = 70633381056.

The previous prime is 212013130111. The next prime is 212013130123. The reversal of 212013130122 is 221031310212.

212013130122 is a `hidden beast` number, since 212 + 0 + 131 + 301 + 22 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 206616611601 + 5396518521 = 454551^2 + 73461^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 212013130095 and 212013130104.

It is not an unprimeable number, because it can be changed into a prime (212013130123) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3103803 + ... + 3171374.

Almost surely, 2^212013130122 is an apocalyptic number.

212013130122 is an abundant number, since it is smaller than the sum of its proper divisors (247593456954).

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

212013130122 is a wasteful number, since it uses less digits than its factorization.

212013130122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6277062 (or 6277059 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 212013130122 its reverse (221031310212), we get a palindrome (433044440334).

The spelling of 212013130122 in words is "two hundred twelve billion, thirteen million, one hundred thirty thousand, one hundred twenty-two".