10100212221222 has 48 divisors (see below), whose sum is σ = 22435101142272. Its totient is φ = 3282049415040.

The previous prime is 10100212221103. The next prime is 10100212221241. The reversal of 10100212221222 is 22212221200101.

It is a happy number.

10100212221222 is a `hidden beast` number, since 1 + 0 + 10 + 0 + 212 + 221 + 222 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 10100212221195 and 10100212221204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4416198 + ... + 6301049.

It is an arithmetic number, because the mean of its divisors is an integer number (467397940464).

Almost surely, 2^{10100212221222} is an apocalyptic number.

10100212221222 is an abundant number, since it is smaller than the sum of its proper divisors (12334888921050).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10100212221222 is a wasteful number, since it uses less digits than its factorization.

10100212221222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10718573 (or 10718570 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 10100212221222 its reverse (22212221200101), we get a palindrome (32312433421323).

The spelling of 10100212221222 in words is "ten trillion, one hundred billion, two hundred twelve million, two hundred twenty-one thousand, two hundred twenty-two".