22234202021 has 16 divisors (see below), whose sum is σ = 23636121600. Its totient is φ = 20856366000.

The previous prime is 22234201993. The next prime is 22234202083. The reversal of 22234202021 is 12020243222.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22234202021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22234201984 and 22234202002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22234102021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 879800 + ... + 904718.

It is an arithmetic number, because the mean of its divisors is an integer number (1477257600).

Almost surely, 2^22234202021 is an apocalyptic number.

It is an amenable number.

22234202021 is a deficient number, since it is larger than the sum of its proper divisors (1401919579).

22234202021 is a wasteful number, since it uses less digits than its factorization.

22234202021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25400.

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 22234202021 its reverse (12020243222), we get a palindrome (34254445243).

The spelling of 22234202021 in words is "twenty-two billion, two hundred thirty-four million, two hundred two thousand, twenty-one".