222020002001 has 6 divisors (see below), whose sum is σ = 258268165650. Its totient is φ = 190302858816.

The previous prime is 222020001977. The next prime is 222020002013. The reversal of 222020002001 is 100200020222.

It can be written as a sum of positive squares in only one way, i.e., 196759667776 + 25260334225 = 443576^2 + 158935^2 .

It is not a de Polignac number, because 222020002001 - 2¹⁰ = 222020000977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222020002051) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2265510176 + ... + 2265510273.

It is an arithmetic number, because the mean of its divisors is an integer number (43044694275).

Almost surely, 2^222020002001 is an apocalyptic number.

It is an amenable number.

222020002001 is a deficient number, since it is larger than the sum of its proper divisors (36248163649).

222020002001 is an equidigital number, since it uses as much as digits as its factorization.

222020002001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4531020463 (or 4531020456 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

Adding to 222020002001 its reverse (100200020222), we get a palindrome (322220022223).

The spelling of 222020002001 in words is "two hundred twenty-two billion, twenty million, two thousand, one".