222210001021 has 16 divisors (see below), whose sum is σ = 223721491968. Its totient is φ = 220705380400.

The previous prime is 222210001007. The next prime is 222210001033. The reversal of 222210001021 is 120100012222.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 222210001021 - 2²⁹ = 221673130109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222210000992 and 222210001010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222210001001) 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, 170014650 + ... + 170015956.

It is an arithmetic number, because the mean of its divisors is an integer number (13982593248).

Almost surely, 2^222210001021 is an apocalyptic number.

It is an amenable number.

222210001021 is a deficient number, since it is larger than the sum of its proper divisors (1511490947).

222210001021 is a wasteful number, since it uses less digits than its factorization.

222210001021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3152.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 222210001021 its reverse (120100012222), we get a palindrome (342310013243).

The spelling of 222210001021 in words is "two hundred twenty-two billion, two hundred ten million, one thousand, twenty-one".