1222624061 has 4 divisors (see below), whose sum is σ = 1236361500. Its totient is φ = 1208886624.

The previous prime is 1222623971. The next prime is 1222624069. The reversal of 1222624061 is 1604262221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1604262221 = 25189 ⋅63689.

It can be written as a sum of positive squares in 2 ways, for example, as 616528900 + 606095161 = 24830^2 + 24619^2 .

It is a cyclic number.

It is not a de Polignac number, because 1222624061 - 2²⁶ = 1155515197 is a prime.

It is a super-2 number, since 2×1222624061² = 2989619189072263442, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1222624061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222624069) 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, 6868586 + ... + 6868763.

It is an arithmetic number, because the mean of its divisors is an integer number (309090375).

Almost surely, 2^1222624061 is an apocalyptic number.

It is an amenable number.

1222624061 is a deficient number, since it is larger than the sum of its proper divisors (13737439).

1222624061 is an equidigital number, since it uses as much as digits as its factorization.

1222624061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13737438.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 1222624061 is about 34966.0415403288. The cubic root of 1222624061 is about 1069.2952709482.

Adding to 1222624061 its reverse (1604262221), we get a palindrome (2826886282).

The spelling of 1222624061 in words is "one billion, two hundred twenty-two million, six hundred twenty-four thousand, sixty-one".