1212431222 has 8 divisors (see below), whose sum is σ = 1818827472. Its totient is φ = 606155400.

The previous prime is 1212431219. The next prime is 1212431237. The reversal of 1212431222 is 2221342121.

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

It is a junction number, because it is equal to n+sod(n) for n = 1212431194 and 1212431203.

It is a congruent number.

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, 1847 + ... + 49277.

It is an arithmetic number, because the mean of its divisors is an integer number (227353434).

Almost surely, 2^1212431222 is an apocalyptic number.

1212431222 is a deficient number, since it is larger than the sum of its proper divisors (606396250).

1212431222 is a wasteful number, since it uses less digits than its factorization.

1212431222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60214.

The product of its digits is 384, while the sum is 20.

The square root of 1212431222 is about 34819.9830844301. The cubic root of 1212431222 is about 1066.3154550539.

Adding to 1212431222 its reverse (2221342121), we get a palindrome (3433773343).

The spelling of 1212431222 in words is "one billion, two hundred twelve million, four hundred thirty-one thousand, two hundred twenty-two".