210121022000213 has 2 divisors, whose sum is σ = 210121022000214. Its totient is φ = 210121022000212.

The previous prime is 210121022000209. The next prime is 210121022000231. The reversal of 210121022000213 is 312000220121012.

210121022000213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with next prime (210121022000231) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 118212408737809 + 91908613262404 = 10872553^2 + 9586898^2 .

It is a cyclic number.

It is not a de Polignac number, because 210121022000213 - 2² = 210121022000209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 210121022000191 and 210121022000200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210121022000413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105060511000106 + 105060511000107.

It is an arithmetic number, because the mean of its divisors is an integer number (105060511000107).

Almost surely, 2^{210121022000213} is an apocalyptic number.

It is an amenable number.

210121022000213 is a deficient number, since it is larger than the sum of its proper divisors (1).

210121022000213 is an equidigital number, since it uses as much as digits as its factorization.

210121022000213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 210121022000213 its reverse (312000220121012), we get a palindrome (522121242121225).

The spelling of 210121022000213 in words is "two hundred ten trillion, one hundred twenty-one billion, twenty-two million, two hundred thirteen", and thus it is an aban number.