212122111100222 has 16 divisors (see below), whose sum is σ = 320320343916720. Its totient is φ = 105349129511808.

The previous prime is 212122111100183. The next prime is 212122111100297. The reversal of 212122111100222 is 222001111221212.

It is a super-2 number, since 2×212122111100222² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212122111100194 and 212122111100203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115684772 + ... + 117504087.

It is an arithmetic number, because the mean of its divisors is an integer number (20020021494795).

Almost surely, 2^{212122111100222} is an apocalyptic number.

212122111100222 is a deficient number, since it is larger than the sum of its proper divisors (108198232816498).

212122111100222 is a wasteful number, since it uses less digits than its factorization.

212122111100222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233191915.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 212122111100222 its reverse (222001111221212), we get a palindrome (434123222321434).

The spelling of 212122111100222 in words is "two hundred twelve trillion, one hundred twenty-two billion, one hundred eleven million, one hundred thousand, two hundred twenty-two".