212020022122 has 4 divisors (see below), whose sum is σ = 318030033186. Its totient is φ = 106010011060.

The previous prime is 212020022117. The next prime is 212020022129. The reversal of 212020022122 is 221220020212.

212020022122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 211775756481 + 244265641 = 460191^2 + 15629^2 .

It is a super-2 number, since 2×212020022122² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212020022096 and 212020022105.

It is not an unprimeable number, because it can be changed into a prime (212020022129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53005005529 + ... + 53005005532.

Almost surely, 2^212020022122 is an apocalyptic number.

212020022122 is a deficient number, since it is larger than the sum of its proper divisors (106010011064).

212020022122 is a wasteful number, since it uses less digits than its factorization.

212020022122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106010011063.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 212020022122 its reverse (221220020212), we get a palindrome (433240042334).

The spelling of 212020022122 in words is "two hundred twelve billion, twenty million, twenty-two thousand, one hundred twenty-two".