1220268073 has 16 divisors (see below), whose sum is σ = 1253560000. Its totient is φ = 1187550720.

The previous prime is 1220268047. The next prime is 1220268107. The reversal of 1220268073 is 3708620221.

It is a cyclic number.

It is not a de Polignac number, because 1220268073 - 2²⁵ = 1186713641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1220268173) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2445178 + ... + 2445676.

It is an arithmetic number, because the mean of its divisors is an integer number (78347500).

Almost surely, 2^1220268073 is an apocalyptic number.

It is an amenable number.

1220268073 is a deficient number, since it is larger than the sum of its proper divisors (33291927).

1220268073 is a wasteful number, since it uses less digits than its factorization.

1220268073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 952.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 1220268073 is about 34932.3356361982. The cubic root of 1220268073 is about 1068.6079877971.

Adding to 1220268073 its reverse (3708620221), we get a palindrome (4928888294).

The spelling of 1220268073 in words is "one billion, two hundred twenty million, two hundred sixty-eight thousand, seventy-three".