220612073 has 4 divisors (see below), whose sum is σ = 240667728. Its totient is φ = 200556420.

The previous prime is 220612069. The next prime is 220612099. The reversal of 220612073 is 370216022.

220612073 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 220612073 - 2² = 220612069 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220612013) 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, 10027811 + ... + 10027832.

It is an arithmetic number, because the mean of its divisors is an integer number (60166932).

Almost surely, 2^220612073 is an apocalyptic number.

It is an amenable number.

220612073 is a deficient number, since it is larger than the sum of its proper divisors (20055655).

220612073 is a wasteful number, since it uses less digits than its factorization.

220612073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20055654.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 220612073 is about 14853.0156197319. The cubic root of 220612073 is about 604.2403990574.

Adding to 220612073 its reverse (370216022), we get a palindrome (590828095).

The spelling of 220612073 in words is "two hundred twenty million, six hundred twelve thousand, seventy-three".