1212322242 has 64 divisors (see below), whose sum is σ = 2542947840. Its totient is φ = 384943104.

The previous prime is 1212322213. The next prime is 1212322247. The reversal of 1212322242 is 2422232121.

It is not an unprimeable number, because it can be changed into a prime (1212322247) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3873078 + ... + 3873390.

It is an arithmetic number, because the mean of its divisors is an integer number (39733560).

Almost surely, 2^1212322242 is an apocalyptic number.

1212322242 is an abundant number, since it is smaller than the sum of its proper divisors (1330625598).

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

1212322242 is a wasteful number, since it uses less digits than its factorization.

1212322242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667.

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

The square root of 1212322242 is about 34818.4181432758. The cubic root of 1212322242 is about 1066.2835053267.

Adding to 1212322242 its reverse (2422232121), we get a palindrome (3634554363).

The spelling of 1212322242 in words is "one billion, two hundred twelve million, three hundred twenty-two thousand, two hundred forty-two".