100011122221222 has 32 divisors (see below), whose sum is σ = 151689116779200. Its totient is φ = 49448948871168.

The previous prime is 100011122221201. The next prime is 100011122221247. The reversal of 100011122221222 is 222122221110001.

It is a super-2 number, since 2×100011122221222² (a number of 29 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 100011122221222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2667727054 + ... + 2667764542.

It is an arithmetic number, because the mean of its divisors is an integer number (4740284899350).

Almost surely, 2^{100011122221222} is an apocalyptic number.

100011122221222 is a deficient number, since it is larger than the sum of its proper divisors (51677994557978).

100011122221222 is a wasteful number, since it uses less digits than its factorization.

100011122221222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48640.

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

Adding to 100011122221222 its reverse (222122221110001), we get a palindrome (322133343331223).

The spelling of 100011122221222 in words is "one hundred trillion, eleven billion, one hundred twenty-two million, two hundred twenty-one thousand, two hundred twenty-two".