122121238 has 8 divisors (see below), whose sum is σ = 188132832. Its totient is φ = 59410296.

The previous prime is 122121203. The next prime is 122121239. The reversal of 122121238 is 832121221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122121239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 825070 + ... + 825217.

It is an arithmetic number, because the mean of its divisors is an integer number (23516604).

Almost surely, 2^122121238 is an apocalyptic number.

122121238 is a deficient number, since it is larger than the sum of its proper divisors (66011594).

122121238 is a wasteful number, since it uses less digits than its factorization.

122121238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1650326.

The product of its digits is 384, while the sum is 22.

The square root of 122121238 is about 11050.8478407767. The cubic root of 122121238 is about 496.1318019269.

Adding to 122121238 its reverse (832121221), we get a palindrome (954242459).

The spelling of 122121238 in words is "one hundred twenty-two million, one hundred twenty-one thousand, two hundred thirty-eight".