12212110012011 has 64 divisors (see below), whose sum is σ = 20479773619200. Its totient is φ = 6431976391680.

The previous prime is 12212110011991. The next prime is 12212110012049. The reversal of 12212110012011 is 11021001121221.

It is a happy number.

It is not a de Polignac number, because 12212110012011 - 2⁶ = 12212110011947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12212110012811) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8324476 + ... + 9680966.

It is an arithmetic number, because the mean of its divisors is an integer number (319996462800).

Almost surely, 2^{12212110012011} is an apocalyptic number.

12212110012011 is a deficient number, since it is larger than the sum of its proper divisors (8267663607189).

12212110012011 is a wasteful number, since it uses less digits than its factorization.

12212110012011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1357201 (or 1357187 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 12212110012011 its reverse (11021001121221), we get a palindrome (23233111133232).

The spelling of 12212110012011 in words is "twelve trillion, two hundred twelve billion, one hundred ten million, twelve thousand, eleven".