106221029 has 2 divisors, whose sum is σ = 106221030. Its totient is φ = 106221028.

The previous prime is 106221023. The next prime is 106221047. The reversal of 106221029 is 920122601.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 106048804 + 172225 = 10298^2 + 415^2 .

It is an emirp because it is prime and its reverse (920122601) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 106221029 - 2⁴ = 106221013 is a prime.

It is a super-2 number, since 2×106221029² = 22565814003637682, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 106220995 and 106221013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (106221023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53110514 + 53110515.

It is an arithmetic number, because the mean of its divisors is an integer number (53110515).

Almost surely, 2^106221029 is an apocalyptic number.

It is an amenable number.

106221029 is a deficient number, since it is larger than the sum of its proper divisors (1).

106221029 is an equidigital number, since it uses as much as digits as its factorization.

106221029 is an odious number, because the sum of its binary digits is odd.

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

The square root of 106221029 is about 10306.3586683173. The cubic root of 106221029 is about 473.5910663533.

The spelling of 106221029 in words is "one hundred six million, two hundred twenty-one thousand, twenty-nine".