11222022111 has 8 divisors (see below), whose sum is σ = 14998408320. Its totient is φ = 7463491992.

The previous prime is 11222022107. The next prime is 11222022131. The reversal of 11222022111 is 11122022211.

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

It is not a de Polignac number, because 11222022111 - 2² = 11222022107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11222022101) 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, 4462555 + ... + 4465068.

It is an arithmetic number, because the mean of its divisors is an integer number (1874801040).

Almost surely, 2^11222022111 is an apocalyptic number.

11222022111 is a deficient number, since it is larger than the sum of its proper divisors (3776386209).

11222022111 is an equidigital number, since it uses as much as digits as its factorization.

11222022111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8928045.

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

Adding to 11222022111 its reverse (11122022211), we get a palindrome (22344044322).

The spelling of 11222022111 in words is "eleven billion, two hundred twenty-two million, twenty-two thousand, one hundred eleven".