11211201012 has 48 divisors (see below), whose sum is σ = 28665649152. Its totient is φ = 3382090080.

The previous prime is 11211200999. The next prime is 11211201059. The reversal of 11211201012 is 21010211211.

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 (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160998 + ... + 219869.

It is an arithmetic number, because the mean of its divisors is an integer number (597201024).

Almost surely, 2^11211201012 is an apocalyptic number.

11211201012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11211201012 is an abundant number, since it is smaller than the sum of its proper divisors (17454448140).

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

11211201012 is a wasteful number, since it uses less digits than its factorization.

11211201012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381108 (or 381106 counting only the distinct ones).

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

Adding to 11211201012 its reverse (21010211211), we get a palindrome (32221412223).

The spelling of 11211201012 in words is "eleven billion, two hundred eleven million, two hundred one thousand, twelve".