2200021022021 has 8 divisors (see below), whose sum is σ = 2222731381080. Its totient is φ = 2177311269888.

The previous prime is 2200021021963. The next prime is 2200021022047. The reversal of 2200021022021 is 1202201200022.

It can be written as a sum of positive squares in 4 ways, for example, as 1325926917121 + 874094104900 = 1151489^2 + 934930^2 .

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 2200021022021 - 2¹⁸ = 2200020759877 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2200021021987 and 2200021022005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2200021021021) 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, 12874025 + ... + 13043793.

It is an arithmetic number, because the mean of its divisors is an integer number (277841422635).

Almost surely, 2^{2200021022021} is an apocalyptic number.

It is an amenable number.

2200021022021 is a deficient number, since it is larger than the sum of its proper divisors (22710359059).

2200021022021 is a wasteful number, since it uses less digits than its factorization.

2200021022021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303463.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 2200021022021 its reverse (1202201200022), we get a palindrome (3402222222043).

The spelling of 2200021022021 in words is "two trillion, two hundred billion, twenty-one million, twenty-two thousand, twenty-one".