106643122 has 4 divisors (see below), whose sum is σ = 159964686. Its totient is φ = 53321560.

The previous prime is 106643113. The next prime is 106643161. The reversal of 106643122 is 221346601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 221346601 = 7 ⋅31620943.

It can be written as a sum of positive squares in only one way, i.e., 103612041 + 3031081 = 10179^2 + 1741^2 .

It is a super-2 number, since 2×106643122² = 22745510939813768, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26660779 + ... + 26660782.

Almost surely, 2^106643122 is an apocalyptic number.

106643122 is a deficient number, since it is larger than the sum of its proper divisors (53321564).

106643122 is an equidigital number, since it uses as much as digits as its factorization.

106643122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53321563.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 106643122 is about 10326.8156757057. The cubic root of 106643122 is about 474.2175439196.

Adding to 106643122 its reverse (221346601), we get a palindrome (327989723).

The spelling of 106643122 in words is "one hundred six million, six hundred forty-three thousand, one hundred twenty-two".