2231121021120 has 336 divisors, whose sum is σ = 7830735318432. Its totient is φ = 582857932800.

The previous prime is 2231121021109. The next prime is 2231121021131. The reversal of 2231121021120 is 211201211322.

2231121021120 is a `hidden beast` number, since 2 + 2 + 311 + 210 + 21 + 120 = 666.

It is an interprime number because it is at equal distance from previous prime (2231121021109) and next prime (2231121021131).

It is a super-3 number, since 3×2231121021120³ (a number of 38 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2231121021093 and 2231121021102.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 104242420 + ... + 104263820.

Almost surely, 2^{2231121021120} is an apocalyptic number.

2231121021120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2231121021120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3915367659216).

2231121021120 is an abundant number, since it is smaller than the sum of its proper divisors (5599614297312).

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

2231121021120 is a wasteful number, since it uses less digits than its factorization.

2231121021120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22160 (or 22147 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 2231121021120 its reverse (211201211322), we get a palindrome (2442322232442).

The spelling of 2231121021120 in words is "two trillion, two hundred thirty-one billion, one hundred twenty-one million, twenty-one thousand, one hundred twenty".