121322323012220 has 24 divisors (see below), whose sum is σ = 277938412719408. Its totient is φ = 44117208368000.

The previous prime is 121322323012201. The next prime is 121322323012237. The reversal of 121322323012220 is 22210323223121.

It is a super-3 number, since 3×121322323012220³ (a number of 43 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 121322323012220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 275732552081 + ... + 275732552520.

It is an arithmetic number, because the mean of its divisors is an integer number (11580767196642).

Almost surely, 2^{121322323012220} is an apocalyptic number.

121322323012220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121322323012220 is an abundant number, since it is smaller than the sum of its proper divisors (156616089707188).

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

121322323012220 is a wasteful number, since it uses less digits than its factorization.

121322323012220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551465104621 (or 551465104619 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 121322323012220 its reverse (22210323223121), we get a palindrome (143532646235341).

The spelling of 121322323012220 in words is "one hundred twenty-one trillion, three hundred twenty-two billion, three hundred twenty-three million, twelve thousand, two hundred twenty".