121000122238 has 16 divisors (see below), whose sum is σ = 186482049984. Its totient is φ = 58840780320.

The previous prime is 121000122167. The next prime is 121000122239. The reversal of 121000122238 is 832221000121.

It is a super-2 number, since 2×121000122238² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121000122239) 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, 153033 + ... + 515188.

It is an arithmetic number, because the mean of its divisors is an integer number (11655128124).

Almost surely, 2^121000122238 is an apocalyptic number.

121000122238 is a deficient number, since it is larger than the sum of its proper divisors (65481927746).

121000122238 is a wasteful number, since it uses less digits than its factorization.

121000122238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670707.

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

Adding to 121000122238 its reverse (832221000121), we get a palindrome (953221122359).

The spelling of 121000122238 in words is "one hundred twenty-one billion, one hundred twenty-two thousand, two hundred thirty-eight".