121221332023230 has 192 divisors, whose sum is σ = 322909253222400. Its totient is φ = 31537019001600.

The previous prime is 121221332023201. The next prime is 121221332023237. The reversal of 121221332023230 is 32320233122121.

121221332023230 is a `hidden beast` number, since 1 + 2 + 1 + 2 + 2 + 1 + 332 + 0 + 2 + 323 + 0 = 666.

It is a super-2 number, since 2×121221332023230² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121221332023194 and 121221332023203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121221332023237) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1862017680 + ... + 1862082780.

It is an arithmetic number, because the mean of its divisors is an integer number (1681819027200).

Almost surely, 2^{121221332023230} is an apocalyptic number.

121221332023230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 121221332023230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161454626611200).

121221332023230 is an abundant number, since it is smaller than the sum of its proper divisors (201687921199170).

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

121221332023230 is a wasteful number, since it uses less digits than its factorization.

121221332023230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66559 (or 66556 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 121221332023230 its reverse (32320233122121), we get a palindrome (153541565145351).

The spelling of 121221332023230 in words is "one hundred twenty-one trillion, two hundred twenty-one billion, three hundred thirty-two million, twenty-three thousand, two hundred thirty".