1211010201012 has 24 divisors (see below), whose sum is σ = 2833561483200. Its totient is φ = 402545636416.

The previous prime is 1211010200987. The next prime is 1211010201053. The reversal of 1211010201012 is 2101020101121.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140549337 + ... + 140557952.

It is an arithmetic number, because the mean of its divisors is an integer number (118065061800).

Almost surely, 2^{1211010201012} is an apocalyptic number.

1211010201012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1211010201012 is an abundant number, since it is smaller than the sum of its proper divisors (1622551282188).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1211010201012 is a wasteful number, since it uses less digits than its factorization.

1211010201012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281107655 (or 281107653 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1211010201012 its reverse (2101020101121), we get a palindrome (3312030302133).

The spelling of 1211010201012 in words is "one trillion, two hundred eleven billion, ten million, two hundred one thousand, twelve".