1212223487 has 8 divisors (see below), whose sum is σ = 1266118656. Its totient is φ = 1158427512.

The previous prime is 1212223477. The next prime is 1212223559. The reversal of 1212223487 is 7843222121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1212223487 - 2⁶ = 1212223423 is a prime.

It is a Duffinian number.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 758 + ... + 49244.

It is an arithmetic number, because the mean of its divisors is an integer number (158264832).

Almost surely, 2^1212223487 is an apocalyptic number.

1212223487 is a deficient number, since it is larger than the sum of its proper divisors (53895169).

1212223487 is a wasteful number, since it uses less digits than its factorization.

1212223487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49597.

The product of its digits is 10752, while the sum is 32.

The square root of 1212223487 is about 34816.9999712784. Note that the first 4 decimals coincide. The cubic root of 1212223487 is about 1066.2545516148.

The spelling of 1212223487 in words is "one billion, two hundred twelve million, two hundred twenty-three thousand, four hundred eighty-seven".