21112010101222 has 64 divisors (see below), whose sum is σ = 33032652768000. Its totient is φ = 10107627651072.

The previous prime is 21112010101213. The next prime is 21112010101289. The reversal of 21112010101222 is 22210101021112.

It is a junction number, because it is equal to n+sod(n) for n = 21112010101196 and 21112010101205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3604574518 + ... + 3604580374.

It is an arithmetic number, because the mean of its divisors is an integer number (516135199500).

Almost surely, 2^{21112010101222} is an apocalyptic number.

21112010101222 is a deficient number, since it is larger than the sum of its proper divisors (11920642666778).

21112010101222 is a wasteful number, since it uses less digits than its factorization.

21112010101222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7153.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 21112010101222 its reverse (22210101021112), we get a palindrome (43322111122334).

The spelling of 21112010101222 in words is "twenty-one trillion, one hundred twelve billion, ten million, one hundred one thousand, two hundred twenty-two".