122142228 has 24 divisors (see below), whose sum is σ = 306921888. Its totient is φ = 37582176.

The previous prime is 122142221. The next prime is 122142247. The reversal of 122142228 is 822241221.

It is a junction number, because it is equal to n+sod(n) for n = 122142198 and 122142207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122142221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 391326 + ... + 391637.

It is an arithmetic number, because the mean of its divisors is an integer number (12788412).

Almost surely, 2^122142228 is an apocalyptic number.

It is an amenable number.

122142228 is an abundant number, since it is smaller than the sum of its proper divisors (184779660).

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

122142228 is a wasteful number, since it uses less digits than its factorization.

122142228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 782983 (or 782981 counting only the distinct ones).

The product of its digits is 1024, while the sum is 24.

The square root of 122142228 is about 11051.7975008593. The cubic root of 122142228 is about 496.1602250746.

Adding to 122142228 its reverse (822241221), we get a palindrome (944383449).

The spelling of 122142228 in words is "one hundred twenty-two million, one hundred forty-two thousand, two hundred twenty-eight".