211010012201021 has 64 divisors (see below), whose sum is σ = 236063971123200. Its totient is φ = 187020905702400.

The previous prime is 211010012201003. The next prime is 211010012201069. The reversal of 211010012201021 is 120102210010112.

It is not a de Polignac number, because 211010012201021 - 2¹⁰ = 211010012199997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 211010012200987 and 211010012201005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211010012203021) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10718231240 + ... + 10718250926.

It is an arithmetic number, because the mean of its divisors is an integer number (3688499548800).

Almost surely, 2^{211010012201021} is an apocalyptic number.

It is an amenable number.

211010012201021 is a deficient number, since it is larger than the sum of its proper divisors (25053958922179).

211010012201021 is a wasteful number, since it uses less digits than its factorization.

211010012201021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20490.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 211010012201021 its reverse (120102210010112), we get a palindrome (331112222211133).

The spelling of 211010012201021 in words is "two hundred eleven trillion, ten billion, twelve million, two hundred one thousand, twenty-one".