2210221222021 has 16 divisors (see below), whose sum is σ = 2238579322560. Its totient is φ = 2182016275200.

The previous prime is 2210221221997. The next prime is 2210221222049. The reversal of 2210221222021 is 1202221220122.

It is a cyclic number.

It is not a de Polignac number, because 2210221222021 - 2¹³ = 2210221213829 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2210221222021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2210221222081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45843490 + ... + 45891676.

It is an arithmetic number, because the mean of its divisors is an integer number (139911207660).

Almost surely, 2^{2210221222021} is an apocalyptic number.

It is an amenable number.

2210221222021 is a deficient number, since it is larger than the sum of its proper divisors (28358100539).

2210221222021 is a wasteful number, since it uses less digits than its factorization.

2210221222021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49764.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 2210221222021 its reverse (1202221220122), we get a palindrome (3412442442143).

The spelling of 2210221222021 in words is "two trillion, two hundred ten billion, two hundred twenty-one million, two hundred twenty-two thousand, twenty-one".