10222221111 has 4 divisors (see below), whose sum is σ = 13629628152. Its totient is φ = 6814814072.

The previous prime is 10222221109. The next prime is 10222221137. The reversal of 10222221111 is 11112222201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11112222201 = 3 ⋅3704074067.

It is a cyclic number.

It is not a de Polignac number, because 10222221111 - 2¹ = 10222221109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10222221151) 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, 1703703516 + ... + 1703703521.

It is an arithmetic number, because the mean of its divisors is an integer number (3407407038).

Almost surely, 2^10222221111 is an apocalyptic number.

10222221111 is a deficient number, since it is larger than the sum of its proper divisors (3407407041).

10222221111 is an equidigital number, since it uses as much as digits as its factorization.

10222221111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3407407040.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 10222221111 its reverse (11112222201), we get a palindrome (21334443312).

The spelling of 10222221111 in words is "ten billion, two hundred twenty-two million, two hundred twenty-one thousand, one hundred eleven".