121223332120 has 48 divisors (see below), whose sum is σ = 299802343680. Its totient is φ = 44081209920.

The previous prime is 121223332103. The next prime is 121223332121. The reversal of 121223332120 is 21233322121.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 121223332091 and 121223332100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121223332121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12518232 + ... + 12527911.

It is an arithmetic number, because the mean of its divisors is an integer number (6245882160).

Almost surely, 2^121223332120 is an apocalyptic number.

121223332120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121223332120 is an abundant number, since it is smaller than the sum of its proper divisors (178579011560).

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

121223332120 is a wasteful number, since it uses less digits than its factorization.

121223332120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25046176 (or 25046161 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 121223332120 its reverse (21233322121), we get a palindrome (142456654241).

Subtracting from 121223332120 its reverse (21233322121), we obtain a palindrome (99990009999).

It can be divided in two parts, 1212 and 23332120, that added together give a palindrome (23333332).

The spelling of 121223332120 in words is "one hundred twenty-one billion, two hundred twenty-three million, three hundred thirty-two thousand, one hundred twenty".