10221123111 has 8 divisors (see below), whose sum is σ = 14220693120. Its totient is φ = 6517817592.

The previous prime is 10221123097. The next prime is 10221123113. The reversal of 10221123111 is 11132112201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10221123111 - 2⁵ = 10221123079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10221123113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74066041 + ... + 74066178.

It is an arithmetic number, because the mean of its divisors is an integer number (1777586640).

Almost surely, 2^10221123111 is an apocalyptic number.

10221123111 is a deficient number, since it is larger than the sum of its proper divisors (3999570009).

10221123111 is a wasteful number, since it uses less digits than its factorization.

10221123111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148132245.

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

Adding to 10221123111 its reverse (11132112201), we get a palindrome (21353235312).

The spelling of 10221123111 in words is "ten billion, two hundred twenty-one million, one hundred twenty-three thousand, one hundred eleven".