122202990 has 192 divisors, whose sum is σ = 401296896. Its totient is φ = 25111296.

The previous prime is 122202973. The next prime is 122203027. The reversal of 122202990 is 99202221.

It is a zygodrome in base 3.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 351997 + ... + 352343.

It is an arithmetic number, because the mean of its divisors is an integer number (2090088).

Almost surely, 2^122202990 is an apocalyptic number.

122202990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 122202990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (200648448).

122202990 is an abundant number, since it is smaller than the sum of its proper divisors (279093906).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122202990 is a wasteful number, since it uses less digits than its factorization.

122202990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423 (or 420 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 122202990 is about 11054.5461236543. The cubic root of 122202990 is about 496.2424862502.

The spelling of 122202990 in words is "one hundred twenty-two million, two hundred two thousand, nine hundred ninety".