116361221 has 4 divisors (see below), whose sum is σ = 118268844. Its totient is φ = 114453600.

The previous prime is 116361173. The next prime is 116361227. The reversal of 116361221 is 122163611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 122163611 = 349 ⋅350039.

It can be written as a sum of positive squares in 2 ways, for example, as 67010596 + 49350625 = 8186^2 + 7025^2 .

It is a cyclic number.

It is not a de Polignac number, because 116361221 - 2²² = 112166917 is a prime.

It is a super-2 number, since 2×116361221² = 27079867505221682, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116361227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 953720 + ... + 953841.

It is an arithmetic number, because the mean of its divisors is an integer number (29567211).

Almost surely, 2^116361221 is an apocalyptic number.

It is an amenable number.

116361221 is a deficient number, since it is larger than the sum of its proper divisors (1907623).

116361221 is an equidigital number, since it uses as much as digits as its factorization.

116361221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1907622.

The product of its digits is 432, while the sum is 23.

The square root of 116361221 is about 10787.0858437300. The cubic root of 116361221 is about 488.2055998417.

The spelling of 116361221 in words is "one hundred sixteen million, three hundred sixty-one thousand, two hundred twenty-one".