1000222222120 has 32 divisors (see below), whose sum is σ = 2455090909920. Its totient is φ = 363717171520.

The previous prime is 1000222222091. The next prime is 1000222222141. The reversal of 1000222222120 is 212222220001.

It is a junction number, because it is equal to n+sod(n) for n = 1000222222094 and 1000222222103.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1136615722 + ... + 1136616601.

It is an arithmetic number, because the mean of its divisors is an integer number (76721590935).

Almost surely, 2^{1000222222120} is an apocalyptic number.

1000222222120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1000222222120 is an abundant number, since it is smaller than the sum of its proper divisors (1454868687800).

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

1000222222120 is a wasteful number, since it uses less digits than its factorization.

1000222222120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2273232345 (or 2273232341 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 1000222222120 its reverse (212222220001), we get a palindrome (1212444442121).

The spelling of 1000222222120 in words is "one trillion, two hundred twenty-two million, two hundred twenty-two thousand, one hundred twenty".