1212222000011 has 4 divisors (see below), whose sum is σ = 1322424000024. Its totient is φ = 1102020000000.

The previous prime is 1212222000001. The next prime is 1212222000013. The reversal of 1212222000011 is 1100002222121.

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-1212222000011 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1212222000011.

It is not an unprimeable number, because it can be changed into a prime (1212222000013) 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, 55100999990 + ... + 55101000011.

It is an arithmetic number, because the mean of its divisors is an integer number (330606000006).

Almost surely, 2^{1212222000011} is an apocalyptic number.

1212222000011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1212222000011 is a deficient number, since it is larger than the sum of its proper divisors (110202000013).

1212222000011 is a wasteful number, since it uses less digits than its factorization.

1212222000011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110202000012.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1212222000011 its reverse (1100002222121), we get a palindrome (2312224222132).

The spelling of 1212222000011 in words is "one trillion, two hundred twelve billion, two hundred twenty-two million, eleven", and thus it is an aban number.