1001122022222 has 12 divisors (see below), whose sum is σ = 1746855773640. Its totient is φ = 429052295196.

The previous prime is 1001122022209. The next prime is 1001122022239. The reversal of 1001122022222 is 2222202211001.

It is a happy number.

1001122022222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 1001122022222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5107765322 + ... + 5107765517.

It is an arithmetic number, because the mean of its divisors is an integer number (145571314470).

Almost surely, 2^{1001122022222} is an apocalyptic number.

1001122022222 is a deficient number, since it is larger than the sum of its proper divisors (745733751418).

1001122022222 is a wasteful number, since it uses less digits than its factorization.

1001122022222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10215530855 (or 10215530848 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 1001122022222 its reverse (2222202211001), we get a palindrome (3223324233223).

The spelling of 1001122022222 in words is "one trillion, one billion, one hundred twenty-two million, twenty-two thousand, two hundred twenty-two".