10211211222021 has 16 divisors (see below), whose sum is σ = 15127820782720. Its totient is φ = 6807428943840.

The previous prime is 10211211221983. The next prime is 10211211222029. The reversal of 10211211222021 is 12022211211201.

10211211222021 is a `hidden beast` number, since 1 + 0 + 211 + 211 + 2 + 220 + 21 = 666.

It is not a de Polignac number, because 10211211222021 - 2³⁵ = 10176851483653 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10211211221985 and 10211211222003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10211211222029) 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, 3169161 + ... + 5519601.

It is an arithmetic number, because the mean of its divisors is an integer number (945488798920).

Almost surely, 2^{10211211222021} is an apocalyptic number.

It is an amenable number.

10211211222021 is a deficient number, since it is larger than the sum of its proper divisors (4916609560699).

10211211222021 is a wasteful number, since it uses less digits than its factorization.

10211211222021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2511353 (or 2511347 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 10211211222021 its reverse (12022211211201), we get a palindrome (22233422433222).

The spelling of 10211211222021 in words is "ten trillion, two hundred eleven billion, two hundred eleven million, two hundred twenty-two thousand, twenty-one".