1212223004 has 12 divisors (see below), whose sum is σ = 2213624784. Its totient is φ = 579758784.

The previous prime is 1212223003. The next prime is 1212223007. The reversal of 1212223004 is 4003222121.

It is a super-2 number, since 2×1212223004² = 2938969222853568032, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212223003) 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, 6588077 + ... + 6588260.

It is an arithmetic number, because the mean of its divisors is an integer number (184468732).

Almost surely, 2^1212223004 is an apocalyptic number.

It is an amenable number.

1212223004 is a deficient number, since it is larger than the sum of its proper divisors (1001401780).

1212223004 is a wasteful number, since it uses less digits than its factorization.

1212223004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13176364 (or 13176362 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1212223004 is about 34816.9930350109. The cubic root of 1212223004 is about 1066.2544100014.

Adding to 1212223004 its reverse (4003222121), we get a palindrome (5215445125).

The spelling of 1212223004 in words is "one billion, two hundred twelve million, two hundred twenty-three thousand, four".