1212223441 has 32 divisors (see below), whose sum is σ = 1495646208. Its totient is φ = 966757440.

The previous prime is 1212223423. The next prime is 1212223447. The reversal of 1212223441 is 1443222121.

It is not a de Polignac number, because 1212223441 - 2⁵ = 1212223409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1212223447) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 548160 + ... + 550366.

It is an arithmetic number, because the mean of its divisors is an integer number (46738944).

Almost surely, 2^1212223441 is an apocalyptic number.

1212223441 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1212223441 is a deficient number, since it is larger than the sum of its proper divisors (283422767).

1212223441 is a wasteful number, since it uses less digits than its factorization.

1212223441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2421.

The product of its digits is 768, while the sum is 22.

The square root of 1212223441 is about 34816.9993106816. Note that the first 3 decimals coincide. The cubic root of 1212223441 is about 1066.2545381278.

Adding to 1212223441 its reverse (1443222121), we get a palindrome (2655445562).

The spelling of 1212223441 in words is "one billion, two hundred twelve million, two hundred twenty-three thousand, four hundred forty-one".