123202220 has 12 divisors (see below), whose sum is σ = 258724704. Its totient is φ = 49280880.

The previous prime is 123202217. The next prime is 123202223. The reversal of 123202220 is 22202321.

It is an interprime number because it is at equal distance from previous prime (123202217) and next prime (123202223).

It is a junction number, because it is equal to n+sod(n) for n = 123202195 and 123202204.

It is not an unprimeable number, because it can be changed into a prime (123202223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3080036 + ... + 3080075.

It is an arithmetic number, because the mean of its divisors is an integer number (21560392).

Almost surely, 2^123202220 is an apocalyptic number.

123202220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123202220 is an abundant number, since it is smaller than the sum of its proper divisors (135522484).

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

123202220 is a wasteful number, since it uses less digits than its factorization.

123202220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6160120 (or 6160118 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 123202220 is about 11099.6495440171. The cubic root of 123202220 is about 497.5913756893.

Adding to 123202220 its reverse (22202321), we get a palindrome (145404541).

The spelling of 123202220 in words is "one hundred twenty-three million, two hundred two thousand, two hundred twenty".