201212111221012 has 24 divisors (see below), whose sum is σ = 353089901177216. Its totient is φ = 100329296675328.

The previous prime is 201212111220943. The next prime is 201212111221039. The reversal of 201212111221012 is 210122111212102.

It is a happy number.

It is a congruent number.

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, 54878743 + ... + 58430305.

Almost surely, 2^{201212111221012} is an apocalyptic number.

It is an amenable number.

201212111221012 is a deficient number, since it is larger than the sum of its proper divisors (151877789956204).

201212111221012 is a wasteful number, since it uses less digits than its factorization.

201212111221012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3590527 (or 3590525 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 201212111221012 its reverse (210122111212102), we get a palindrome (411334222433114).

The spelling of 201212111221012 in words is "two hundred one trillion, two hundred twelve billion, one hundred eleven million, two hundred twenty-one thousand, twelve".