222012011111 has 4 divisors (see below), whose sum is σ = 242194921224. Its totient is φ = 201829101000.

The previous prime is 222012011101. The next prime is 222012011147. The reversal of 222012011111 is 111110210222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222012011111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222012011101) 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, 10091455040 + ... + 10091455061.

It is an arithmetic number, because the mean of its divisors is an integer number (60548730306).

Almost surely, 2^222012011111 is an apocalyptic number.

222012011111 is a deficient number, since it is larger than the sum of its proper divisors (20182910113).

222012011111 is a wasteful number, since it uses less digits than its factorization.

222012011111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20182910112.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 222012011111 its reverse (111110210222), we get a palindrome (333122221333).

The spelling of 222012011111 in words is "two hundred twenty-two billion, twelve million, eleven thousand, one hundred eleven".