2222220123 has 8 divisors (see below), whose sum is σ = 3292178000. Its totient is φ = 1481480064.

The previous prime is 2222220103. The next prime is 2222220137. The reversal of 2222220123 is 3210222222.

It is not a de Polignac number, because 2222220123 - 2⁹ = 2222219611 is a prime.

It is a super-2 number, since 2×2222220123² = 9876524550132270258, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2222220096 and 2222220105.

It is not an unprimeable number, because it can be changed into a prime (2222220103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41152198 + ... + 41152251.

It is an arithmetic number, because the mean of its divisors is an integer number (411522250).

Almost surely, 2^2222220123 is an apocalyptic number.

2222220123 is a deficient number, since it is larger than the sum of its proper divisors (1069957877).

2222220123 is an equidigital number, since it uses as much as digits as its factorization.

2222220123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82304458 (or 82304452 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 2222220123 is about 47140.4298134839. The cubic root of 2222220123 is about 1304.9554694806.

Adding to 2222220123 its reverse (3210222222), we get a palindrome (5432442345).

The spelling of 2222220123 in words is "two billion, two hundred twenty-two million, two hundred twenty thousand, one hundred twenty-three".