2211210020021 has 8 divisors (see below), whose sum is σ = 2225419600320. Its totient is φ = 2197011973408.

The previous prime is 2211210020011. The next prime is 2211210020083. The reversal of 2211210020021 is 1200200121122.

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 2211210020021 - 2¹⁸ = 2211209757877 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2211210019978 and 2211210020005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2211210020011) 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, 2498591 + ... + 3265788.

It is an arithmetic number, because the mean of its divisors is an integer number (278177450040).

Almost surely, 2^{2211210020021} is an apocalyptic number.

It is an amenable number.

2211210020021 is a deficient number, since it is larger than the sum of its proper divisors (14209580299).

2211210020021 is a wasteful number, since it uses less digits than its factorization.

2211210020021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5766843.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2211210020021 its reverse (1200200121122), we get a palindrome (3411410141143).

The spelling of 2211210020021 in words is "two trillion, two hundred eleven billion, two hundred ten million, twenty thousand, twenty-one".