1212002224 has 20 divisors (see below), whose sum is σ = 2352193200. Its totient is φ = 604984640.

The previous prime is 1212002219. The next prime is 1212002237. The reversal of 1212002224 is 4222002121.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 1212002198 and 1212002207.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53647 + ... + 72814.

It is an arithmetic number, because the mean of its divisors is an integer number (117609660).

Almost surely, 2^1212002224 is an apocalyptic number.

It is an amenable number.

1212002224 is a deficient number, since it is larger than the sum of its proper divisors (1140190976).

1212002224 is a wasteful number, since it uses less digits than its factorization.

1212002224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127068 (or 127062 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 1212002224 is about 34813.8223124092. The cubic root of 1212002224 is about 1066.1896744039.

Adding to 1212002224 its reverse (4222002121), we get a palindrome (5434004345).

The spelling of 1212002224 in words is "one billion, two hundred twelve million, two thousand, two hundred twenty-four".