122144250 has 32 divisors (see below), whose sum is σ = 304873920. Its totient is φ = 32571600.

The previous prime is 122144233. The next prime is 122144251. The reversal of 122144250 is 52441221.

122144250 = T₁₃₃₅ + T₁₃₃₆ + ... + T₁₄₅₉.

It is not an unprimeable number, because it can be changed into a prime (122144251) 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 15 ways as a sum of consecutive naturals, for example, 80680 + ... + 82179.

It is an arithmetic number, because the mean of its divisors is an integer number (9527310).

Almost surely, 2^122144250 is an apocalyptic number.

122144250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122144250 is an abundant number, since it is smaller than the sum of its proper divisors (182729670).

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

122144250 is a wasteful number, since it uses less digits than its factorization.

122144250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162879 (or 162869 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 122144250 is about 11051.8889788126. Note that the first 3 decimals coincide. The cubic root of 122144250 is about 496.1629629495.

Adding to 122144250 its reverse (52441221), we get a palindrome (174585471).

The spelling of 122144250 in words is "one hundred twenty-two million, one hundred forty-four thousand, two hundred fifty".