2210210221021 has 8 divisors (see below), whose sum is σ = 2411151984288. Its totient is φ = 2009270718000.

The previous prime is 2210210220961. The next prime is 2210210221123. The reversal of 2210210221021 is 1201220120122.

It is a happy number.

2210210221021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2210210221021 - 2¹¹ = 2210210218973 is a prime.

It is a super-2 number, since 2×2210210221021² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2210210220986 and 2210210221004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2210210222021) 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, 1976686 + ... + 2885776.

It is an arithmetic number, because the mean of its divisors is an integer number (301393998036).

Almost surely, 2^{2210210221021} is an apocalyptic number.

It is an amenable number.

2210210221021 is a deficient number, since it is larger than the sum of its proper divisors (200941763267).

2210210221021 is a wasteful number, since it uses less digits than its factorization.

2210210221021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1130123.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2210210221021 its reverse (1201220120122), we get a palindrome (3411430341143).

The spelling of 2210210221021 in words is "two trillion, two hundred ten billion, two hundred ten million, two hundred twenty-one thousand, twenty-one".