10211112231 has 4 divisors (see below), whose sum is σ = 13614816312. Its totient is φ = 6807408152.

The previous prime is 10211112211. The next prime is 10211112239. The reversal of 10211112231 is 13221111201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13221111201 = 3 ⋅4407037067.

It is a cyclic number.

It is not a de Polignac number, because 10211112231 - 2¹³ = 10211104039 is a prime.

It is a super-2 number, since 2×10211112231² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10211112231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10211112239) 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, 1701852036 + ... + 1701852041.

It is an arithmetic number, because the mean of its divisors is an integer number (3403704078).

Almost surely, 2^10211112231 is an apocalyptic number.

10211112231 is a deficient number, since it is larger than the sum of its proper divisors (3403704081).

10211112231 is an equidigital number, since it uses as much as digits as its factorization.

10211112231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3403704080.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 10211112231 its reverse (13221111201), we get a palindrome (23432223432).

The spelling of 10211112231 in words is "ten billion, two hundred eleven million, one hundred twelve thousand, two hundred thirty-one".