211021002001213 has 8 divisors (see below), whose sum is σ = 211447431124056. Its totient is φ = 210594707092800.

The previous prime is 211021002001207. The next prime is 211021002001253. The reversal of 211021002001213 is 312100200120112.

It can be written as a sum of positive squares in 4 ways, for example, as 20005743037284 + 191015258963929 = 4472778^2 + 13820827^2 .

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 211021002001213 - 2²¹ = 211020999904061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211021002001253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30405598 + ... + 36695263.

It is an arithmetic number, because the mean of its divisors is an integer number (26430928890507).

Almost surely, 2^{211021002001213} is an apocalyptic number.

It is an amenable number.

211021002001213 is a deficient number, since it is larger than the sum of its proper divisors (426429122843).

211021002001213 is an equidigital number, since it uses as much as digits as its factorization.

211021002001213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67107215.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 211021002001213 its reverse (312100200120112), we get a palindrome (523121202121325).

The spelling of 211021002001213 in words is "two hundred eleven trillion, twenty-one billion, two million, one thousand, two hundred thirteen".