2012011223 has 4 divisors (see below), whose sum is σ = 2020429920. Its totient is φ = 2003592528.

The previous prime is 2012011207. The next prime is 2012011249. The reversal of 2012011223 is 3221102102.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2012011223 - 2⁴ = 2012011207 is a prime.

It is a super-2 number, since 2×2012011223² = 8096378322955911458, 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 = 2012011198 and 2012011207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012011723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4208990 + ... + 4209467.

It is an arithmetic number, because the mean of its divisors is an integer number (505107480).

Almost surely, 2^2012011223 is an apocalyptic number.

2012011223 is a deficient number, since it is larger than the sum of its proper divisors (8418697).

2012011223 is an equidigital number, since it uses as much as digits as its factorization.

2012011223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8418696.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 2012011223 is about 44855.4480860464. The cubic root of 2012011223 is about 1262.4382163406.

Adding to 2012011223 its reverse (3221102102), we get a palindrome (5233113325).

The spelling of 2012011223 in words is "two billion, twelve million, eleven thousand, two hundred twenty-three".