121012203323220 has 48 divisors (see below), whose sum is σ = 369637275607488. Its totient is φ = 29336291714560.

The previous prime is 121012203323183. The next prime is 121012203323233. The reversal of 121012203323220 is 22323302210121.

It is a super-3 number, since 3×121012203323220³ (a number of 43 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91675910949 + ... + 91675912268.

It is an arithmetic number, because the mean of its divisors is an integer number (7700776575156).

Almost surely, 2^{121012203323220} is an apocalyptic number.

121012203323220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121012203323220 is an abundant number, since it is smaller than the sum of its proper divisors (248625072284268).

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

121012203323220 is a wasteful number, since it uses less digits than its factorization.

121012203323220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183351823240 (or 183351823238 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 121012203323220 its reverse (22323302210121), we get a palindrome (143335505533341).

The spelling of 121012203323220 in words is "one hundred twenty-one trillion, twelve billion, two hundred three million, three hundred twenty-three thousand, two hundred twenty".