4221200021224 has 16 divisors (see below), whose sum is σ = 7996345402500. Its totient is φ = 2088841247232.

The previous prime is 4221200021201. The next prime is 4221200021237.

4221200021224 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 4064328576324 + 156871444900 = 2016018^2 + 396070^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4221200021195 and 4221200021204.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2719844599 + ... + 2719846150.

Almost surely, 2^{4221200021224} is an apocalyptic number.

It is an amenable number.

4221200021224 is a deficient number, since it is larger than the sum of its proper divisors (3775145381276).

4221200021224 is a wasteful number, since it uses less digits than its factorization.

4221200021224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5439690852 (or 5439690848 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

It can be divided in two parts, 42212000 and 21224, that added together give a palindrome (42233224).

The spelling of 4221200021224 in words is "four trillion, two hundred twenty-one billion, two hundred million, twenty-one thousand, two hundred twenty-four".