1020101200221 has 32 divisors (see below), whose sum is σ = 1390656833280. Its totient is φ = 664900314624.

The previous prime is 1020101200219. The next prime is 1020101200229. The reversal of 1020101200221 is 1220021010201.

It is not a de Polignac number, because 1020101200221 - 2¹ = 1020101200219 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1020101200197 and 1020101200206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020101200229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 59810931 + ... + 59827983.

It is an arithmetic number, because the mean of its divisors is an integer number (43458026040).

Almost surely, 2^{1020101200221} is an apocalyptic number.

It is an amenable number.

1020101200221 is a deficient number, since it is larger than the sum of its proper divisors (370555633059).

1020101200221 is a wasteful number, since it uses less digits than its factorization.

1020101200221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18405.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1020101200221 its reverse (1220021010201), we get a palindrome (2240122210422).

The spelling of 1020101200221 in words is "one trillion, twenty billion, one hundred one million, two hundred thousand, two hundred twenty-one".