211010220211021 has 16 divisors (see below), whose sum is σ = 263328466262400. Its totient is φ = 164266805018880.

The previous prime is 211010220211019. The next prime is 211010220211027. The reversal of 211010220211021 is 120112022010112.

It is a cyclic number.

It is not a de Polignac number, because 211010220211021 - 2¹ = 211010220211019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 211010220210986 and 211010220211004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211010220211027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1306112016 + ... + 1306273561.

It is an arithmetic number, because the mean of its divisors is an integer number (16458029141400).

Almost surely, 2^{211010220211021} is an apocalyptic number.

It is an amenable number.

211010220211021 is a deficient number, since it is larger than the sum of its proper divisors (52318246051379).

211010220211021 is a wasteful number, since it uses less digits than its factorization.

211010220211021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2612386644.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 211010220211021 its reverse (120112022010112), we get a palindrome (331122242221133).

The spelling of 211010220211021 in words is "two hundred eleven trillion, ten billion, two hundred twenty million, two hundred eleven thousand, twenty-one".