1222013124 has 36 divisors (see below), whose sum is σ = 3096353260. Its totient is φ = 406365120.

The previous prime is 1222013059. The next prime is 1222013137. The reversal of 1222013124 is 4213102221.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 233539524 + 988473600 = 15282^2 + 31440^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1222013097 and 1222013106.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25159 + ... + 55470.

Almost surely, 2^1222013124 is an apocalyptic number.

It is an amenable number.

1222013124 is an abundant number, since it is smaller than the sum of its proper divisors (1874340136).

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

1222013124 is a wasteful number, since it uses less digits than its factorization.

1222013124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81060 (or 81055 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1222013124 is about 34957.3043011042. The cubic root of 1222013124 is about 1069.1171347280.

Adding to 1222013124 its reverse (4213102221), we get a palindrome (5435115345).

The spelling of 1222013124 in words is "one billion, two hundred twenty-two million, thirteen thousand, one hundred twenty-four".