212220031130 has 8 divisors (see below), whose sum is σ = 381996056052. Its totient is φ = 84888012448.

The previous prime is 212220031091. The next prime is 212220031141. The reversal of 212220031130 is 31130022212.

It can be written as a sum of positive squares in 2 ways, for example, as 203088126409 + 9131904721 = 450653^2 + 95561^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×212220031130² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212220031099 and 212220031108.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 10611001547 + ... + 10611001566.

Almost surely, 2^212220031130 is an apocalyptic number.

212220031130 is a deficient number, since it is larger than the sum of its proper divisors (169776024922).

212220031130 is a wasteful number, since it uses less digits than its factorization.

212220031130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21222003120.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 212220031130 its reverse (31130022212), we get a palindrome (243350053342).

The spelling of 212220031130 in words is "two hundred twelve billion, two hundred twenty million, thirty-one thousand, one hundred thirty".