1212310222 has 16 divisors (see below), whose sum is σ = 1972397952. Its totient is φ = 556583680.

The previous prime is 1212310213. The next prime is 1212310249. The reversal of 1212310222 is 2220132121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1212310196 and 1212310205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 433438 + ... + 436225.

It is an arithmetic number, because the mean of its divisors is an integer number (123274872).

Almost surely, 2^1212310222 is an apocalyptic number.

1212310222 is a deficient number, since it is larger than the sum of its proper divisors (760087730).

1212310222 is a wasteful number, since it uses less digits than its factorization.

1212310222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 869723.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1212310222 is about 34818.2455330535. The cubic root of 1212310222 is about 1066.2799812994.

Adding to 1212310222 its reverse (2220132121), we get a palindrome (3432442343).

The spelling of 1212310222 in words is "one billion, two hundred twelve million, three hundred ten thousand, two hundred twenty-two".