12212212221011 has 8 divisors (see below), whose sum is σ = 13323926145024. Its totient is φ = 11100750432520.

The previous prime is 12212212221007. The next prime is 12212212221023. The reversal of 12212212221011 is 11012221221221.

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 12212212221011 - 2² = 12212212221007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12212212221061) 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, 62932595 + ... + 63126348.

It is an arithmetic number, because the mean of its divisors is an integer number (1665490768128).

Almost surely, 2^{12212212221011} is an apocalyptic number.

12212212221011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12212212221011 is a deficient number, since it is larger than the sum of its proper divisors (1111713924013).

12212212221011 is a wasteful number, since it uses less digits than its factorization.

12212212221011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126067761.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 12212212221011 its reverse (11012221221221), we get a palindrome (23224433442232).

The spelling of 12212212221011 in words is "twelve trillion, two hundred twelve billion, two hundred twelve million, two hundred twenty-one thousand, eleven".