201211111220012 has 24 divisors (see below), whose sum is σ = 352337294485680. Its totient is φ = 100543331266560.

The previous prime is 201211111219981. The next prime is 201211111220083. The reversal of 201211111220012 is 210022111112102.

It is a super-2 number, since 2×201211111220012² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41331587 + ... + 45942597.

It is an arithmetic number, because the mean of its divisors is an integer number (14680720603570).

Almost surely, 2^{201211111220012} is an apocalyptic number.

It is an amenable number.

201211111220012 is a deficient number, since it is larger than the sum of its proper divisors (151126183265668).

201211111220012 is a wasteful number, since it uses less digits than its factorization.

201211111220012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4617761 (or 4617759 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 201211111220012 its reverse (210022111112102), we get a palindrome (411233222332114).

The spelling of 201211111220012 in words is "two hundred one trillion, two hundred eleven billion, one hundred eleven million, two hundred twenty thousand, twelve".