1213013122 has 8 divisors (see below), whose sum is σ = 1820535372. Its totient is φ = 606168000.

The previous prime is 1213013117. The next prime is 1213013141. The reversal of 1213013122 is 2213103121.

It can be written as a sum of positive squares in 2 ways, for example, as 1185356041 + 27657081 = 34429^2 + 5259^2 .

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 = 1213013096 and 1213013105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164779 + ... + 171982.

Almost surely, 2^1213013122 is an apocalyptic number.

1213013122 is a deficient number, since it is larger than the sum of its proper divisors (607522250).

1213013122 is a wasteful number, since it uses less digits than its factorization.

1213013122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338564.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1213013122 is about 34828.3379161280. The cubic root of 1213013122 is about 1066.4860186047.

Adding to 1213013122 its reverse (2213103121), we get a palindrome (3426116243).

It can be divided in two parts, 12130 and 13122, that added together give a palindrome (25252).

The spelling of 1213013122 in words is "one billion, two hundred thirteen million, thirteen thousand, one hundred twenty-two".