210222300211021 has 4 divisors (see below), whose sum is σ = 240254057384032. Its totient is φ = 180190543038012.

The previous prime is 210222300210997. The next prime is 210222300211037. The reversal of 210222300211021 is 120112003222012.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 210222300211021 - 2¹⁹ = 210222299686733 is a prime.

It is a super-2 number, since 2×210222300211021² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 210222300211021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210222300211421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15015878586495 + ... + 15015878586508.

It is an arithmetic number, because the mean of its divisors is an integer number (60063514346008).

Almost surely, 2^{210222300211021} is an apocalyptic number.

It is an amenable number.

210222300211021 is a deficient number, since it is larger than the sum of its proper divisors (30031757173011).

210222300211021 is an equidigital number, since it uses as much as digits as its factorization.

210222300211021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30031757173010.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 210222300211021 its reverse (120112003222012), we get a palindrome (330334303433033).

The spelling of 210222300211021 in words is "two hundred ten trillion, two hundred twenty-two billion, three hundred million, two hundred eleven thousand, twenty-one".