1212243222 has 16 divisors (see below), whose sum is σ = 2425325760. Its totient is φ = 403941192.

The previous prime is 1212243211. The next prime is 1212243233. The reversal of 1212243222 is 2223422121.

It is an interprime number because it is at equal distance from previous prime (1212243211) and next prime (1212243233).

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, 15348 + ... + 51575.

It is an arithmetic number, because the mean of its divisors is an integer number (151582860).

Almost surely, 2^1212243222 is an apocalyptic number.

1212243222 is an abundant number, since it is smaller than the sum of its proper divisors (1213082538).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1212243222 is a wasteful number, since it uses less digits than its factorization.

1212243222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69947.

The product of its digits is 768, while the sum is 21.

The square root of 1212243222 is about 34817.2833805281. The cubic root of 1212243222 is about 1066.2603377919.

Adding to 1212243222 its reverse (2223422121), we get a palindrome (3435665343).

The spelling of 1212243222 in words is "one billion, two hundred twelve million, two hundred forty-three thousand, two hundred twenty-two".