2121233455552 has 14 divisors (see below), whose sum is σ = 4209322638488. Its totient is φ = 1060616727744.

The previous prime is 2121233455531. The next prime is 2121233455609. The reversal of 2121233455552 is 2555543321212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16572136308 + ... + 16572136435.

Almost surely, 2^{2121233455552} is an apocalyptic number.

It is an amenable number.

2121233455552 is a deficient number, since it is larger than the sum of its proper divisors (2088089182936).

2121233455552 is an equidigital number, since it uses as much as digits as its factorization.

2121233455552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33144272755 (or 33144272745 counting only the distinct ones).

The product of its digits is 360000, while the sum is 40.

Adding to 2121233455552 its reverse (2555543321212), we get a palindrome (4676776776764).

The spelling of 2121233455552 in words is "two trillion, one hundred twenty-one billion, two hundred thirty-three million, four hundred fifty-five thousand, five hundred fifty-two".