201001111221212 has 24 divisors (see below), whose sum is σ = 370321760739840. Its totient is φ = 95196509748720.

The previous prime is 201001111221203. The next prime is 201001111221221. The reversal of 201001111221212 is 212122111100102.

It is an interprime number because it is at equal distance from previous prime (201001111221203) and next prime (201001111221221).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 201484364 + ... + 202479507.

It is an arithmetic number, because the mean of its divisors is an integer number (15430073364160).

Almost surely, 2^{201001111221212} is an apocalyptic number.

It is an amenable number.

201001111221212 is a deficient number, since it is larger than the sum of its proper divisors (169320649518628).

201001111221212 is a wasteful number, since it uses less digits than its factorization.

201001111221212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403970441 (or 403970439 counting only the distinct ones).

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

Adding to 201001111221212 its reverse (212122111100102), we get a palindrome (413123222321314).

The spelling of 201001111221212 in words is "two hundred one trillion, one billion, one hundred eleven million, two hundred twenty-one thousand, two hundred twelve".