4202021322 has 24 divisors (see below), whose sum is σ = 9131408676. Its totient is φ = 1396515456.

The previous prime is 4202021321. The next prime is 4202021333. The reversal of 4202021322 is 2231202024.

It can be written as a sum of positive squares in 2 ways, for example, as 4061385441 + 140635881 = 63729^2 + 11859^2 .

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 = 4202021295 and 4202021304.

It is not an unprimeable number, because it can be changed into a prime (4202021321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 340293 + ... + 352424.

Almost surely, 2^4202021322 is an apocalyptic number.

4202021322 is an abundant number, since it is smaller than the sum of its proper divisors (4929387354).

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

4202021322 is a wasteful number, since it uses less digits than its factorization.

4202021322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 693062 (or 693059 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 4202021322 is about 64822.9999460068. Note that the first 4 decimals coincide. The cubic root of 4202021322 is about 1613.6874345784.

Adding to 4202021322 its reverse (2231202024), we get a palindrome (6433223346).

The spelling of 4202021322 in words is "four billion, two hundred two million, twenty-one thousand, three hundred twenty-two".