121000122 has 32 divisors (see below), whose sum is σ = 278164800. Its totient is φ = 38942064.

The previous prime is 121000049. The next prime is 121000123. The reversal of 121000122 is 221000121.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (121000123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37068 + ... + 40199.

It is an arithmetic number, because the mean of its divisors is an integer number (8692650).

Almost surely, 2^121000122 is an apocalyptic number.

121000122 is an abundant number, since it is smaller than the sum of its proper divisors (157164678).

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

121000122 is a wasteful number, since it uses less digits than its factorization.

121000122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77307 (or 77301 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 121000122 is about 11000.0055454531. The cubic root of 121000122 is about 494.6089105570.

Adding to 121000122 its reverse (221000121), we get a palindrome (342000243).

Subtracting 121000122 from its reverse (221000121), we obtain a palindrome (99999999).

The spelling of 121000122 in words is "one hundred twenty-one million, one hundred twenty-two", and thus it is an aban number.