122090 has 16 divisors (see below), whose sum is σ = 227880. Its totient is φ = 47040.

The previous prime is 122081. The next prime is 122099. The reversal of 122090 is 90221.

It is an interprime number because it is at equal distance from previous prime (122081) and next prime (122099).

It can be written as a sum of positive squares in 4 ways, for example, as 58081 + 64009 = 241^2 + 253^2 .

It is not an unprimeable number, because it can be changed into a prime (122099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80 + ... + 500.

2¹²²⁰⁹⁰ is an apocalyptic number.

122090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122090 is a deficient number, since it is larger than the sum of its proper divisors (105790).

122090 is a wasteful number, since it uses less digits than its factorization.

122090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 122090 is about 349.4137948050. The cubic root of 122090 is about 49.6089495644.

The spelling of 122090 in words is "one hundred twenty-two thousand, ninety".