106221835 has 4 divisors (see below), whose sum is σ = 127466208. Its totient is φ = 84977464.

The previous prime is 106221811. The next prime is 106221839. The reversal of 106221835 is 538122601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 538122601 = 239 ⋅2251559.

It is a cyclic number.

It is not a de Polignac number, because 106221835 - 2⁷ = 106221707 is a prime.

It is a super-2 number, since 2×106221835² = 22566156461534450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (106221839) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10622179 + ... + 10622188.

It is an arithmetic number, because the mean of its divisors is an integer number (31866552).

Almost surely, 2^106221835 is an apocalyptic number.

106221835 is a deficient number, since it is larger than the sum of its proper divisors (21244373).

106221835 is an equidigital number, since it uses as much as digits as its factorization.

106221835 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21244372.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 106221835 is about 10306.3977703172. The cubic root of 106221835 is about 473.5922642123.

The spelling of 106221835 in words is "one hundred six million, two hundred twenty-one thousand, eight hundred thirty-five".