2220021321121 has 16 divisors (see below), whose sum is σ = 2335811385600. Its totient is φ = 2106856826368.

The previous prime is 2220021321097. The next prime is 2220021321137. The reversal of 2220021321121 is 1211231200222.

It is not a de Polignac number, because 2220021321121 - 2⁹ = 2220021320609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2220021321181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13302225 + ... + 13468081.

It is an arithmetic number, because the mean of its divisors is an integer number (145988211600).

Almost surely, 2^{2220021321121} is an apocalyptic number.

It is an amenable number.

2220021321121 is a deficient number, since it is larger than the sum of its proper divisors (115790064479).

2220021321121 is a wasteful number, since it uses less digits than its factorization.

2220021321121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173768.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 2220021321121 its reverse (1211231200222), we get a palindrome (3431252521343).

The spelling of 2220021321121 in words is "two trillion, two hundred twenty billion, twenty-one million, three hundred twenty-one thousand, one hundred twenty-one".