212022100222 has 4 divisors (see below), whose sum is σ = 318033150336. Its totient is φ = 106011050110.

The previous prime is 212022100211. The next prime is 212022100223. The reversal of 212022100222 is 222001220212.

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

It is a super-3 number, since 3×212022100222³ (a number of 35 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212022100196 and 212022100205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212022100223) 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 as a sum of consecutive naturals, namely, 53005525054 + ... + 53005525057.

It is an arithmetic number, because the mean of its divisors is an integer number (79508287584).

Almost surely, 2^212022100222 is an apocalyptic number.

212022100222 is a deficient number, since it is larger than the sum of its proper divisors (106011050114).

212022100222 is a wasteful number, since it uses less digits than its factorization.

212022100222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106011050113.

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

Adding to 212022100222 its reverse (222001220212), we get a palindrome (434023320434).

The spelling of 212022100222 in words is "two hundred twelve billion, twenty-two million, one hundred thousand, two hundred twenty-two".