2205143122021 has 8 divisors (see below), whose sum is σ = 2523718106240. Its totient is φ = 1887456772368.

The previous prime is 2205143122019. The next prime is 2205143122121. The reversal of 2205143122021 is 1202213415022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2205143122021 - 2¹ = 2205143122019 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 (2205143122121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 222153321 + ... + 222163246.

It is an arithmetic number, because the mean of its divisors is an integer number (315464763280).

Almost surely, 2^{2205143122021} is an apocalyptic number.

It is an amenable number.

2205143122021 is a deficient number, since it is larger than the sum of its proper divisors (318574984219).

2205143122021 is an equidigital number, since it uses as much as digits as its factorization.

2205143122021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444317283.

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 2205143122021 its reverse (1202213415022), we get a palindrome (3407356537043).

The spelling of 2205143122021 in words is "two trillion, two hundred five billion, one hundred forty-three million, one hundred twenty-two thousand, twenty-one".