2232121000020 has 24 divisors (see below), whose sum is σ = 6249938800224. Its totient is φ = 595232266656.

The previous prime is 2232121000019. The next prime is 2232121000033. The reversal of 2232121000020 is 200001212322.

It is a happy number.

It is a super-3 number, since 3×2232121000020³ (a number of 38 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18601008274 + ... + 18601008393.

It is an arithmetic number, because the mean of its divisors is an integer number (260414116676).

Almost surely, 2^{2232121000020} is an apocalyptic number.

2232121000020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2232121000020 is an abundant number, since it is smaller than the sum of its proper divisors (4017817800204).

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

2232121000020 is a wasteful number, since it uses less digits than its factorization.

2232121000020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37202016679 (or 37202016677 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 2232121000020 its reverse (200001212322), we get a palindrome (2432122212342).

The spelling of 2232121000020 in words is "two trillion, two hundred thirty-two billion, one hundred twenty-one million, twenty", and thus it is an aban number.