1002122220222 has 96 divisors (see below), whose sum is σ = 2350183110912. Its totient is φ = 319435389504.

The previous prime is 1002122220217. The next prime is 1002122220263. The reversal of 1002122220222 is 2220222212001.

1002122220222 is a `hidden beast` number, since 10 + 0 + 212 + 2 + 220 + 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 = 1002122220195 and 1002122220204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 55735698 + ... + 55753674.

It is an arithmetic number, because the mean of its divisors is an integer number (24481074072).

Almost surely, 2^{1002122220222} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1002122220222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1175091555456).

1002122220222 is an abundant number, since it is smaller than the sum of its proper divisors (1348060890690).

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

1002122220222 is a wasteful number, since it uses less digits than its factorization.

1002122220222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23004 (or 22992 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 1002122220222 its reverse (2220222212001), we get a palindrome (3222344432223).

The spelling of 1002122220222 in words is "one trillion, two billion, one hundred twenty-two million, two hundred twenty thousand, two hundred twenty-two".