122142450 has 96 divisors (see below), whose sum is σ = 337746240. Its totient is φ = 29030400.

The previous prime is 122142401. The next prime is 122142463. The reversal of 122142450 is 54241221.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 47190 + ... + 49710.

It is an arithmetic number, because the mean of its divisors is an integer number (3518190).

Almost surely, 2^122142450 is an apocalyptic number.

122142450 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 122142450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (168873120).

122142450 is an abundant number, since it is smaller than the sum of its proper divisors (215603790).

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

122142450 is a wasteful number, since it uses less digits than its factorization.

122142450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2572 (or 2567 counting only the distinct ones).

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

The square root of 122142450 is about 11051.8075444698. The cubic root of 122142450 is about 496.1605256736.

Adding to 122142450 its reverse (54241221), we get a palindrome (176383671).

The spelling of 122142450 in words is "one hundred twenty-two million, one hundred forty-two thousand, four hundred fifty".