61112211221116 has 24 divisors (see below), whose sum is σ = 116669253057840. Its totient is φ = 27778162070400.

The previous prime is 61112211221093. The next prime is 61112211221137.

61112211221116 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8268490 + ... + 13805518.

It is an arithmetic number, because the mean of its divisors is an integer number (4861218877410).

Almost surely, 2^{61112211221116} is an apocalyptic number.

It is an amenable number.

61112211221116 is a deficient number, since it is larger than the sum of its proper divisors (55557041836724).

61112211221116 is a wasteful number, since it uses less digits than its factorization.

61112211221116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5787885 (or 5787883 counting only the distinct ones).

The product of its digits is 576, while the sum is 28.

It can be divided in two parts, 6111221 and 1221116, that added together give a palindrome (7332337).

The spelling of 61112211221116 in words is "sixty-one trillion, one hundred twelve billion, two hundred eleven million, two hundred twenty-one thousand, one hundred sixteen".