10211010220111 has 4 divisors (see below), whose sum is σ = 10243633256272. Its totient is φ = 10178387183952.

The previous prime is 10211010220109. The next prime is 10211010220129. The reversal of 10211010220111 is 11102201011201.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10211010220111 - 2¹ = 10211010220109 is a prime.

It is a super-2 number, since 2×10211010220111² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10211010220091 and 10211010220100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10211010220211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16311517611 + ... + 16311518236.

It is an arithmetic number, because the mean of its divisors is an integer number (2560908314068).

Almost surely, 2^{10211010220111} is an apocalyptic number.

10211010220111 is a deficient number, since it is larger than the sum of its proper divisors (32623036161).

10211010220111 is an equidigital number, since it uses as much as digits as its factorization.

10211010220111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32623036160.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 10211010220111 its reverse (11102201011201), we get a palindrome (21313211231312).

The spelling of 10211010220111 in words is "ten trillion, two hundred eleven billion, ten million, two hundred twenty thousand, one hundred eleven".