605621222121 has 16 divisors (see below), whose sum is σ = 808111399680. Its totient is φ = 403439388240.

The previous prime is 605621222119. The next prime is 605621222123. The reversal of 605621222121 is 121222126506.

605621222121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (605621222119) and next prime (605621222123).

It is not a de Polignac number, because 605621222121 - 2¹ = 605621222119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (605621222123) 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, 23641506 + ... + 23667108.

It is an arithmetic number, because the mean of its divisors is an integer number (50506962480).

Almost surely, 2^605621222121 is an apocalyptic number.

It is an amenable number.

605621222121 is a deficient number, since it is larger than the sum of its proper divisors (202490177559).

605621222121 is a wasteful number, since it uses less digits than its factorization.

605621222121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31316.

The product of its (nonzero) digits is 5760, while the sum is 30.

Adding to 605621222121 its reverse (121222126506), we get a palindrome (726843348627).

The spelling of 605621222121 in words is "six hundred five billion, six hundred twenty-one million, two hundred twenty-two thousand, one hundred twenty-one".