2220021212101 has 12 divisors (see below), whose sum is σ = 2817243987840. Its totient is φ = 1729886658360.

The previous prime is 2220021212051. The next prime is 2220021212161. The reversal of 2220021212101 is 1012121200222.

It is a happy number.

It is not a de Polignac number, because 2220021212101 - 2⁹ = 2220021211589 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 (2220021212161) 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 11 ways as a sum of consecutive naturals, for example, 2059388341 + ... + 2059389418.

It is an arithmetic number, because the mean of its divisors is an integer number (234770332320).

Almost surely, 2^{2220021212101} is an apocalyptic number.

It is an amenable number.

2220021212101 is a deficient number, since it is larger than the sum of its proper divisors (597222775739).

2220021212101 is a wasteful number, since it uses less digits than its factorization.

2220021212101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4118777784 (or 4118777777 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2220021212101 its reverse (1012121200222), we get a palindrome (3232142412323).

The spelling of 2220021212101 in words is "two trillion, two hundred twenty billion, twenty-one million, two hundred twelve thousand, one hundred one".