222222100020201 has 6 divisors (see below), whose sum is σ = 320987477806970. Its totient is φ = 148148066680128.

The previous prime is 222222100020187. The next prime is 222222100020229. The reversal of 222222100020201 is 102020001222222.

222222100020201 is a `hidden beast` number, since 2 + 222 + 221 + 0 + 0 + 0 + 20 + 201 = 666.

It can be written as a sum of positive squares in only one way, i.e., 211618089315801 + 10604010704400 = 14547099^2 + 3256380^2 .

It is a de Polignac number, because none of the positive numbers 2^k-222222100020201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222222100020251) 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, 12345672223336 + ... + 12345672223353.

Almost surely, 2^{222222100020201} is an apocalyptic number.

It is an amenable number.

222222100020201 is a deficient number, since it is larger than the sum of its proper divisors (98765377786769).

222222100020201 is a wasteful number, since it uses less digits than its factorization.

222222100020201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24691344446695 (or 24691344446692 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 222222100020201 its reverse (102020001222222), we get a palindrome (324242101242423).

The spelling of 222222100020201 in words is "two hundred twenty-two trillion, two hundred twenty-two billion, one hundred million, twenty thousand, two hundred one".