123122250 has 48 divisors (see below), whose sum is σ = 332928648. Its totient is φ = 32832000.

The previous prime is 123122249. The next prime is 123122257. The reversal of 123122250 is 52221321.

It can be written as a sum of positive squares in 4 ways, for example, as 49660209 + 73462041 = 7047^2 + 8571^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (123122257) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25111 + ... + 29610.

Almost surely, 2^123122250 is an apocalyptic number.

123122250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123122250 is an abundant number, since it is smaller than the sum of its proper divisors (209806398).

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

123122250 is a wasteful number, since it uses less digits than its factorization.

123122250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54744 (or 54731 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 123122250 is about 11096.0465932692. The cubic root of 123122250 is about 497.4836909546.

Adding to 123122250 its reverse (52221321), we get a palindrome (175343571).

The spelling of 123122250 in words is "one hundred twenty-three million, one hundred twenty-two thousand, two hundred fifty".