2222120012 has 48 divisors (see below), whose sum is σ = 4691400000. Its totient is φ = 919481472.

The previous prime is 2222120011. The next prime is 2222120023. The reversal of 2222120012 is 2100212222.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is not an unprimeable number, because it can be changed into a prime (2222120011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11864 + ... + 67712.

It is an arithmetic number, because the mean of its divisors is an integer number (97737500).

Almost surely, 2^2222120012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2222120012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2345700000).

2222120012 is an abundant number, since it is smaller than the sum of its proper divisors (2469279988).

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

2222120012 is a wasteful number, since it uses less digits than its factorization.

2222120012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55903 (or 55887 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 2222120012 is about 47139.3679635186. The cubic root of 2222120012 is about 1304.9358731083.

Adding to 2222120012 its reverse (2100212222), we get a palindrome (4322332234).

The spelling of 2222120012 in words is "two billion, two hundred twenty-two million, one hundred twenty thousand, twelve".