1212320122 has 8 divisors (see below), whose sum is σ = 1958363316. Its totient is φ = 559532352.

The previous prime is 1212320119. The next prime is 1212320129. The reversal of 1212320122 is 2210232121.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1191699441 + 20620681 = 34521^2 + 4541^2 .

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 = 1212320096 and 1212320105.

It is not an unprimeable number, because it can be changed into a prime (1212320129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23313823 + ... + 23313874.

Almost surely, 2^1212320122 is an apocalyptic number.

1212320122 is a deficient number, since it is larger than the sum of its proper divisors (746043194).

1212320122 is a wasteful number, since it uses less digits than its factorization.

1212320122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46627712.

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

The square root of 1212320122 is about 34818.3876996049. The cubic root of 1212320122 is about 1066.2828837861.

Adding to 1212320122 its reverse (2210232121), we get a palindrome (3422552243).

The spelling of 1212320122 in words is "one billion, two hundred twelve million, three hundred twenty thousand, one hundred twenty-two".