222101232232021 has 16 divisors (see below), whose sum is σ = 224019875283840. Its totient is φ = 220192819335360.

The previous prime is 222101232232003. The next prime is 222101232232237. The reversal of 222101232232021 is 120232232101222.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222101232232021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222101232235021) 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, 53810976 + ... + 57791206.

It is an arithmetic number, because the mean of its divisors is an integer number (14001242205240).

Almost surely, 2^{222101232232021} is an apocalyptic number.

It is an amenable number.

222101232232021 is a deficient number, since it is larger than the sum of its proper divisors (1918643051819).

222101232232021 is a wasteful number, since it uses less digits than its factorization.

222101232232021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3981516.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 222101232232021 its reverse (120232232101222), we get a palindrome (342333464333243).

The spelling of 222101232232021 in words is "two hundred twenty-two trillion, one hundred one billion, two hundred thirty-two million, two hundred thirty-two thousand, twenty-one".