2221200202021 has 8 divisors (see below), whose sum is σ = 2454113778624. Its totient is φ = 1999648263360.

The previous prime is 2221200201949. The next prime is 2221200202031. The reversal of 2221200202021 is 1202020021222.

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 2221200202021 - 2¹¹ = 2221200199973 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2221200201986 and 2221200202004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221200202031) 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, 2840409075 + ... + 2840409856.

It is an arithmetic number, because the mean of its divisors is an integer number (306764222328).

Almost surely, 2^{2221200202021} is an apocalyptic number.

It is an amenable number.

2221200202021 is a deficient number, since it is larger than the sum of its proper divisors (232913576603).

2221200202021 is a wasteful number, since it uses less digits than its factorization.

2221200202021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5680818971.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 2221200202021 its reverse (1202020021222), we get a palindrome (3423220223243).

The spelling of 2221200202021 in words is "two trillion, two hundred twenty-one billion, two hundred million, two hundred two thousand, twenty-one".