22212030021 has 8 divisors (see below), whose sum is σ = 29620353024. Its totient is φ = 14805863520.

The previous prime is 22212029993. The next prime is 22212030037. The reversal of 22212030021 is 12003021222.

It is a happy number.

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

It is not a de Polignac number, because 22212030021 - 2⁹ = 22212029509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22212030091) 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, 514936 + ... + 556401.

It is an arithmetic number, because the mean of its divisors is an integer number (3702544128).

Almost surely, 2^22212030021 is an apocalyptic number.

It is an amenable number.

22212030021 is a deficient number, since it is larger than the sum of its proper divisors (7408323003).

22212030021 is a wasteful number, since it uses less digits than its factorization.

22212030021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1078251.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 22212030021 its reverse (12003021222), we get a palindrome (34215051243).

The spelling of 22212030021 in words is "twenty-two billion, two hundred twelve million, thirty thousand, twenty-one".