220317621061 has 4 divisors (see below), whose sum is σ = 221669263072. Its totient is φ = 218965979052.

The previous prime is 220317620981. The next prime is 220317621079. The reversal of 220317621061 is 160126713022.

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 220317621061 - 2¹¹ = 220317619013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220317625061) 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, 675820761 + ... + 675821086.

It is an arithmetic number, because the mean of its divisors is an integer number (55417315768).

Almost surely, 2^220317621061 is an apocalyptic number.

It is an amenable number.

220317621061 is a deficient number, since it is larger than the sum of its proper divisors (1351642011).

220317621061 is a wasteful number, since it uses less digits than its factorization.

220317621061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1351642010.

The product of its (nonzero) digits is 6048, while the sum is 31.

The spelling of 220317621061 in words is "two hundred twenty billion, three hundred seventeen million, six hundred twenty-one thousand, sixty-one".