106221901 has 2 divisors, whose sum is σ = 106221902. Its totient is φ = 106221900.

The previous prime is 106221883. The next prime is 106221919. The reversal of 106221901 is 109122601.

It is a balanced prime because it is at equal distance from previous prime (106221883) and next prime (106221919).

It can be written as a sum of positive squares in only one way, i.e., 72233001 + 33988900 = 8499^2 + 5830^2 .

It is a cyclic number.

It is not a de Polignac number, because 106221901 - 2¹⁵ = 106189133 is a prime.

It is a super-2 number, since 2×106221901² = 22566184504107602, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (106221971) 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 as a sum of consecutive naturals, namely, 53110950 + 53110951.

It is an arithmetic number, because the mean of its divisors is an integer number (53110951).

Almost surely, 2^106221901 is an apocalyptic number.

It is an amenable number.

106221901 is a deficient number, since it is larger than the sum of its proper divisors (1).

106221901 is an equidigital number, since it uses as much as digits as its factorization.

106221901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 106221901 is about 10306.4009722114. The cubic root of 106221901 is about 473.5923622997.

The spelling of 106221901 in words is "one hundred six million, two hundred twenty-one thousand, nine hundred one".