10221012111 has 8 divisors (see below), whose sum is σ = 13638676480. Its totient is φ = 6808677912.

The previous prime is 10221012089. The next prime is 10221012143. The reversal of 10221012111 is 11121012201.

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

It is not a de Polignac number, because 10221012111 - 2⁶ = 10221012047 is a prime.

It is a super-3 number, since 3×10221012111³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10221012161) 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, 1328065 + ... + 1335738.

It is an arithmetic number, because the mean of its divisors is an integer number (1704834560).

Almost surely, 2^10221012111 is an apocalyptic number.

10221012111 is a deficient number, since it is larger than the sum of its proper divisors (3417664369).

10221012111 is a wasteful number, since it uses less digits than its factorization.

10221012111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2665085.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 10221012111 its reverse (11121012201), we get a palindrome (21342024312).

The spelling of 10221012111 in words is "ten billion, two hundred twenty-one million, twelve thousand, one hundred eleven".