4222511021 has 8 divisors (see below), whose sum is σ = 4244454144. Its totient is φ = 4200595200.

The previous prime is 4222511009. The next prime is 4222511057. The reversal of 4222511021 is 1201152224.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4222511021 - 2¹⁴ = 4222494637 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4222510984 and 4222511002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4222511081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 351110 + ... + 362936.

It is an arithmetic number, because the mean of its divisors is an integer number (530556768).

Almost surely, 2^4222511021 is an apocalyptic number.

It is an amenable number.

4222511021 is a deficient number, since it is larger than the sum of its proper divisors (21943123).

4222511021 is a wasteful number, since it uses less digits than its factorization.

4222511021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13651.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 4222511021 is about 64980.8511870997. The cubic root of 4222511021 is about 1616.3060452215.

Adding to 4222511021 its reverse (1201152224), we get a palindrome (5423663245).

The spelling of 4222511021 in words is "four billion, two hundred twenty-two million, five hundred eleven thousand, twenty-one".