212021130222 has 24 divisors (see below), whose sum is σ = 501140853720. Its totient is φ = 64248827280.

The previous prime is 212021130203. The next prime is 212021130271. The reversal of 212021130222 is 222031120212.

It is a super-2 number, since 2×212021130222² (a number of 23 digits) contains 22 as substring.

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 = 212021130195 and 212021130204.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 535406697 + ... + 535407092.

It is an arithmetic number, because the mean of its divisors is an integer number (20880868905).

Almost surely, 2^212021130222 is an apocalyptic number.

212021130222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

212021130222 is an abundant number, since it is smaller than the sum of its proper divisors (289119723498).

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

212021130222 is a wasteful number, since it uses less digits than its factorization.

212021130222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1070813808 (or 1070813805 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 212021130222 its reverse (222031120212), we get a palindrome (434052250434).

It can be divided in two parts, 212021 and 130222, that added together give a palindrome (342243).

The spelling of 212021130222 in words is "two hundred twelve billion, twenty-one million, one hundred thirty thousand, two hundred twenty-two".