122190285 has 16 divisors (see below), whose sum is σ = 223433856. Its totient is φ = 55858368.

The previous prime is 122190227. The next prime is 122190287. The reversal of 122190285 is 582091221.

It is not a de Polignac number, because 122190285 - 2⁹ = 122189773 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122190287) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 581754 + ... + 581963.

It is an arithmetic number, because the mean of its divisors is an integer number (13964616).

Almost surely, 2^122190285 is an apocalyptic number.

122190285 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

122190285 is a deficient number, since it is larger than the sum of its proper divisors (101243571).

122190285 is a wasteful number, since it uses less digits than its factorization.

122190285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1163732.

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 122190285 is about 11053.9714582588. The cubic root of 122190285 is about 496.2252881459.

The spelling of 122190285 in words is "one hundred twenty-two million, one hundred ninety thousand, two hundred eighty-five".