22012011111 has 8 divisors (see below), whose sum is σ = 31075780464. Its totient is φ = 13811457920.

The previous prime is 22012011083. The next prime is 22012011121. The reversal of 22012011111 is 11111021022.

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

It is a cyclic number.

It is not a de Polignac number, because 22012011111 - 2²⁶ = 21944902247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22012011121) 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, 215803980 + ... + 215804081.

It is an arithmetic number, because the mean of its divisors is an integer number (3884472558).

Almost surely, 2^22012011111 is an apocalyptic number.

22012011111 is a deficient number, since it is larger than the sum of its proper divisors (9063769353).

22012011111 is a wasteful number, since it uses less digits than its factorization.

22012011111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431608081.

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

Adding to 22012011111 its reverse (11111021022), we get a palindrome (33123032133).

The spelling of 22012011111 in words is "twenty-two billion, twelve million, eleven thousand, one hundred eleven".