106221158 has 4 divisors (see below), whose sum is σ = 159331740. Its totient is φ = 53110578.

The previous prime is 106221139. The next prime is 106221161. The reversal of 106221158 is 851122601.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×106221158² = 22565868813721928, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26555288 + ... + 26555291.

It is an arithmetic number, because the mean of its divisors is an integer number (39832935).

Almost surely, 2^106221158 is an apocalyptic number.

106221158 is a deficient number, since it is larger than the sum of its proper divisors (53110582).

106221158 is an equidigital number, since it uses as much as digits as its factorization.

106221158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53110581.

The product of its (nonzero) digits is 960, while the sum is 26.

The square root of 106221158 is about 10306.3649265878. The cubic root of 106221158 is about 473.5912580706.

Adding to 106221158 its reverse (851122601), we get a palindrome (957343759).

The spelling of 106221158 in words is "one hundred six million, two hundred twenty-one thousand, one hundred fifty-eight".