10421272111 has 16 divisors (see below), whose sum is σ = 10843862400. Its totient is φ = 10006875648.

The previous prime is 10421272093. The next prime is 10421272157. The reversal of 10421272111 is 11127212401.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 10421272111 - 2¹⁹ = 10420747823 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 (10421222111) 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, 994045 + ... + 1004473.

It is an arithmetic number, because the mean of its divisors is an integer number (677741400).

Almost surely, 2^10421272111 is an apocalyptic number.

10421272111 is a deficient number, since it is larger than the sum of its proper divisors (422590289).

10421272111 is a wasteful number, since it uses less digits than its factorization.

10421272111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10818.

The product of its (nonzero) digits is 224, while the sum is 22.

Adding to 10421272111 its reverse (11127212401), we get a palindrome (21548484512).

The spelling of 10421272111 in words is "ten billion, four hundred twenty-one million, two hundred seventy-two thousand, one hundred eleven".