22213021001 has 4 divisors (see below), whose sum is σ = 22432952004. Its totient is φ = 21993090000.

The previous prime is 22213020941. The next prime is 22213021027. The reversal of 22213021001 is 10012031222.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9199687225 + 13013333776 = 95915^2 + 114076^2 .

It is a cyclic number.

It is not a de Polignac number, because 22213021001 - 2³⁴ = 5033151817 is a prime.

It is a super-3 number, since 3×22213021001³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22213021031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109965350 + ... + 109965551.

It is an arithmetic number, because the mean of its divisors is an integer number (5608238001).

Almost surely, 2^22213021001 is an apocalyptic number.

It is an amenable number.

22213021001 is a deficient number, since it is larger than the sum of its proper divisors (219931003).

22213021001 is a wasteful number, since it uses less digits than its factorization.

22213021001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219931002.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 22213021001 its reverse (10012031222), we get a palindrome (32225052223).

The spelling of 22213021001 in words is "twenty-two billion, two hundred thirteen million, twenty-one thousand, one".