10216420111 has 4 divisors (see below), whose sum is σ = 10360313424. Its totient is φ = 10072526800.

The previous prime is 10216420021. The next prime is 10216420177. The reversal of 10216420111 is 11102461201.

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 10216420111 - 2²³ = 10208031503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10276420111) 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, 71946550 + ... + 71946691.

It is an arithmetic number, because the mean of its divisors is an integer number (2590078356).

Almost surely, 2^10216420111 is an apocalyptic number.

10216420111 is a deficient number, since it is larger than the sum of its proper divisors (143893313).

10216420111 is an equidigital number, since it uses as much as digits as its factorization.

10216420111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143893312.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 10216420111 its reverse (11102461201), we get a palindrome (21318881312).

The spelling of 10216420111 in words is "ten billion, two hundred sixteen million, four hundred twenty thousand, one hundred eleven".