2220111451440 has 120 divisors (see below), whose sum is σ = 7457414869008. Its totient is φ = 591907392000.

The previous prime is 2220111451391. The next prime is 2220111451469. The reversal of 2220111451440 is 441541110222.

2220111451440 is a `hidden beast` number, since 2 + 2 + 201 + 1 + 1 + 451 + 4 + 4 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a super-3 number, since 3×2220111451440³ (a number of 38 digits) contains 333 as substring.

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 23 ways as a sum of consecutive naturals, for example, 3195315 + ... + 3827565.

Almost surely, 2^{2220111451440} is an apocalyptic number.

2220111451440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2220111451440 is an abundant number, since it is smaller than the sum of its proper divisors (5237303417568).

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

2220111451440 is a wasteful number, since it uses less digits than its factorization.

2220111451440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637147 (or 637138 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

Adding to 2220111451440 its reverse (441541110222), we get a palindrome (2661652561662).

The spelling of 2220111451440 in words is "two trillion, two hundred twenty billion, one hundred eleven million, four hundred fifty-one thousand, four hundred forty".