212121030022 has 16 divisors (see below), whose sum is σ = 365375937600. Its totient is φ = 91343984040.

The previous prime is 212121030013. The next prime is 212121030029. The reversal of 212121030022 is 220030121212.

It is a happy number.

212121030022 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×212121030022³ (a number of 35 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212121029978 and 212121030005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212121030029) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 253732872 + ... + 253733707.

It is an arithmetic number, because the mean of its divisors is an integer number (22835996100).

Almost surely, 2^212121030022 is an apocalyptic number.

212121030022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

212121030022 is a deficient number, since it is larger than the sum of its proper divisors (153254907578).

212121030022 is a wasteful number, since it uses less digits than its factorization.

212121030022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507466611.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 212121030022 its reverse (220030121212), we get a palindrome (432151151234).

The spelling of 212121030022 in words is "two hundred twelve billion, one hundred twenty-one million, thirty thousand, twenty-two".