21201012000068 has 12 divisors (see below), whose sum is σ = 37110515260560. Its totient is φ = 10598007639912.

The previous prime is 21201012000067. The next prime is 21201012000107. The reversal of 21201012000068 is 86000021010212.

It is not an unprimeable number, because it can be changed into a prime (21201012000067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 624570938 + ... + 624604881.

It is an arithmetic number, because the mean of its divisors is an integer number (3092542938380).

Almost surely, 2^{21201012000068} is an apocalyptic number.

It is an amenable number.

21201012000068 is a deficient number, since it is larger than the sum of its proper divisors (15909503260492).

21201012000068 is a wasteful number, since it uses less digits than its factorization.

21201012000068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1249180066 (or 1249180064 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 23.

The spelling of 21201012000068 in words is "twenty-one trillion, two hundred one billion, twelve million, sixty-eight", and thus it is an aban number.