213042211004021 has 16 divisors (see below), whose sum is σ = 247474834763520. Its totient is φ = 179609252446080.

The previous prime is 213042211003991. The next prime is 213042211004027. The reversal of 213042211004021 is 120400112240312.

It is a cyclic number.

It is not a de Polignac number, because 213042211004021 - 2¹⁰ = 213042211002997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213042211004027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9424745 + ... + 22691633.

It is an arithmetic number, because the mean of its divisors is an integer number (15467177172720).

Almost surely, 2^{213042211004021} is an apocalyptic number.

It is an amenable number.

213042211004021 is a deficient number, since it is larger than the sum of its proper divisors (34432623759499).

213042211004021 is a wasteful number, since it uses less digits than its factorization.

213042211004021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13304564.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 213042211004021 its reverse (120400112240312), we get a palindrome (333442323244333).

The spelling of 213042211004021 in words is "two hundred thirteen trillion, forty-two billion, two hundred eleven million, four thousand, twenty-one".