1222013106 has 12 divisors (see below), whose sum is σ = 2647695102. Its totient is φ = 407337696.

The previous prime is 1222013059. The next prime is 1222013137. The reversal of 1222013106 is 6013102221.

It can be written as a sum of positive squares in only one way, i.e., 1129564881 + 92448225 = 33609^2 + 9615^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 67889617 = 1222013106 / (1 + 2 + 2 + 2 + 0 + 1 + 3 + 1 + 0 + 6).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 33944791 + ... + 33944826.

Almost surely, 2^1222013106 is an apocalyptic number.

1222013106 is an abundant number, since it is smaller than the sum of its proper divisors (1425681996).

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

1222013106 is a wasteful number, since it uses less digits than its factorization.

1222013106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67889625 (or 67889622 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1222013106 is about 34957.3040436473. The cubic root of 1222013106 is about 1069.1171294787.

Adding to 1222013106 its reverse (6013102221), we get a palindrome (7235115327).

The spelling of 1222013106 in words is "one billion, two hundred twenty-two million, thirteen thousand, one hundred six".