210022312021121 has 4 divisors (see below), whose sum is σ = 210022681172052. Its totient is φ = 210021942870192.

The previous prime is 210022312021099. The next prime is 210022312021129. The reversal of 210022312021121 is 121120213220012.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 91949400450625 + 118072911570496 = 9589025^2 + 10866136^2 .

It is a cyclic number.

It is not a de Polignac number, because 210022312021121 - 2¹⁴ = 210022312004737 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210022312021093 and 210022312021102.

It is not an unprimeable number, because it can be changed into a prime (210022312021129) 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, 183720746 + ... + 184860371.

It is an arithmetic number, because the mean of its divisors is an integer number (52505670293013).

Almost surely, 2^{210022312021121} is an apocalyptic number.

It is an amenable number.

210022312021121 is a deficient number, since it is larger than the sum of its proper divisors (369150931).

210022312021121 is an equidigital number, since it uses as much as digits as its factorization.

210022312021121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369150930.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 210022312021121 its reverse (121120213220012), we get a palindrome (331142525241133).

The spelling of 210022312021121 in words is "two hundred ten trillion, twenty-two billion, three hundred twelve million, twenty-one thousand, one hundred twenty-one".