21011302203012 has 36 divisors (see below), whose sum is σ = 57940257591216. Its totient is φ = 6367061273520.

The previous prime is 21011302203007. The next prime is 21011302203013. The reversal of 21011302203012 is 21030220311012.

21011302203012 is a `hidden beast` number, since 2 + 10 + 1 + 130 + 220 + 301 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (21011302203013) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 26529421578 + ... + 26529422369.

It is an arithmetic number, because the mean of its divisors is an integer number (1609451599756).

Almost surely, 2^{21011302203012} is an apocalyptic number.

21011302203012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21011302203012 is an abundant number, since it is smaller than the sum of its proper divisors (36928955388204).

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

21011302203012 is a wasteful number, since it uses less digits than its factorization.

21011302203012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53058843968 (or 53058843963 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 21011302203012 its reverse (21030220311012), we get a palindrome (42041522514024).

The spelling of 21011302203012 in words is "twenty-one trillion, eleven billion, three hundred two million, two hundred three thousand, twelve".