21122202201112 has 16 divisors (see below), whose sum is σ = 39682864977840. Its totient is φ = 10540104873696.

The previous prime is 21122202201077. The next prime is 21122202201169. The reversal of 21122202201112 is 21110220222112.

It is a super-2 number, since 2×21122202201112² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21122202201112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2624524083 + ... + 2624532130.

It is an arithmetic number, because the mean of its divisors is an integer number (2480179061115).

Almost surely, 2^{21122202201112} is an apocalyptic number.

It is an amenable number.

21122202201112 is a deficient number, since it is larger than the sum of its proper divisors (18560662776728).

21122202201112 is a wasteful number, since it uses less digits than its factorization.

21122202201112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5249056722 (or 5249056718 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 21122202201112 its reverse (21110220222112), we get a palindrome (42232422423224).

The spelling of 21122202201112 in words is "twenty-one trillion, one hundred twenty-two billion, two hundred two million, two hundred one thousand, one hundred twelve".