211421010421000 has 64 divisors (see below), whose sum is σ = 495104849066880. Its totient is φ = 84503500804800.

The previous prime is 211421010420953. The next prime is 211421010421063. The reversal of 211421010421000 is 124010124112.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79825554 + ... + 82431553.

It is an arithmetic number, because the mean of its divisors is an integer number (7736013266670).

Almost surely, 2^{211421010421000} is an apocalyptic number.

211421010421000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211421010421000 is an abundant number, since it is smaller than the sum of its proper divisors (283683838645880).

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

211421010421000 is a wasteful number, since it uses less digits than its factorization.

211421010421000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162258431 (or 162258417 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 211421010421000 its reverse (124010124112), we get a palindrome (211545020545112).

The spelling of 211421010421000 in words is "two hundred eleven trillion, four hundred twenty-one billion, ten million, four hundred twenty-one thousand".