20210110211213 has 8 divisors (see below), whose sum is σ = 21765744011928. Its totient is φ = 18654620687424.

The previous prime is 20210110211171. The next prime is 20210110211237. The reversal of 20210110211213 is 31211201101202.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 17112040969 + 20192998170244 = 130813^2 + 4493662^2 .

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 20210110211213 - 2¹² = 20210110207117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20210110211191 and 20210110211200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20210110211273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35778206 + ... + 36338687.

It is an arithmetic number, because the mean of its divisors is an integer number (2720718001491).

Almost surely, 2^{20210110211213} is an apocalyptic number.

It is an amenable number.

20210110211213 is a deficient number, since it is larger than the sum of its proper divisors (1555633800715).

20210110211213 is a wasteful number, since it uses less digits than its factorization.

20210110211213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72138463.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 20210110211213 its reverse (31211201101202), we get a palindrome (51421311312415).

The spelling of 20210110211213 in words is "twenty trillion, two hundred ten billion, one hundred ten million, two hundred eleven thousand, two hundred thirteen".