210211212012101 has 2 divisors, whose sum is σ = 210211212012102. Its totient is φ = 210211212012100.

The previous prime is 210211212012083. The next prime is 210211212012173. The reversal of 210211212012101 is 101210212112012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 122227374811201 + 87983837200900 = 11055649^2 + 9379970^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210211212012101 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 210211212012101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210211212002101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105105606006050 + 105105606006051.

It is an arithmetic number, because the mean of its divisors is an integer number (105105606006051).

Almost surely, 2^{210211212012101} is an apocalyptic number.

It is an amenable number.

210211212012101 is a deficient number, since it is larger than the sum of its proper divisors (1).

210211212012101 is an equidigital number, since it uses as much as digits as its factorization.

210211212012101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 210211212012101 its reverse (101210212112012), we get a palindrome (311421424124113).

The spelling of 210211212012101 in words is "two hundred ten trillion, two hundred eleven billion, two hundred twelve million, twelve thousand, one hundred one".