220622677 has 4 divisors (see below), whose sum is σ = 240679296. Its totient is φ = 200566060.

The previous prime is 220622639. The next prime is 220622711. The reversal of 220622677 is 776226022.

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 220622677 - 2¹¹ = 220620629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220622377) 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, 10028293 + ... + 10028314.

It is an arithmetic number, because the mean of its divisors is an integer number (60169824).

Almost surely, 2^220622677 is an apocalyptic number.

It is an amenable number.

220622677 is a deficient number, since it is larger than the sum of its proper divisors (20056619).

220622677 is a wasteful number, since it uses less digits than its factorization.

220622677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20056618.

The product of its (nonzero) digits is 28224, while the sum is 34.

The square root of 220622677 is about 14853.3725799900. The cubic root of 220622677 is about 604.2500800968.

Adding to 220622677 its reverse (776226022), we get a palindrome (996848699).

The spelling of 220622677 in words is "two hundred twenty million, six hundred twenty-two thousand, six hundred seventy-seven".