222100020020101 has 4 divisors (see below), whose sum is σ = 222229979073900. Its totient is φ = 221970060966304.

The previous prime is 222100020020093. The next prime is 222100020020111. The reversal of 222100020020101 is 101020020001222.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 146353111327201 + 75746908692900 = 12097649^2 + 8703270^2 .

It is a cyclic number.

It is not a de Polignac number, because 222100020020101 - 2³ = 222100020020093 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 (222100020020111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64979524336 + ... + 64979527753.

It is an arithmetic number, because the mean of its divisors is an integer number (55557494768475).

Almost surely, 2^{222100020020101} is an apocalyptic number.

It is an amenable number.

222100020020101 is a deficient number, since it is larger than the sum of its proper divisors (129959053799).

222100020020101 is a wasteful number, since it uses less digits than its factorization.

222100020020101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129959053798.

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

Adding to 222100020020101 its reverse (101020020001222), we get a palindrome (323120040021323).

The spelling of 222100020020101 in words is "two hundred twenty-two trillion, one hundred billion, twenty million, twenty thousand, one hundred one".