210012101280 has 72 divisors (see below), whose sum is σ = 716666300532. Its totient is φ = 56003226624.

The previous prime is 210012101279. The next prime is 210012101339. The reversal of 210012101280 is 82101210012.

It can be written as a sum of positive squares in 2 ways, for example, as 207946944144 + 2065157136 = 456012^2 + 45444^2 .

It is a tau number, because it is divible by the number of its divisors (72).

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

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 11 ways as a sum of consecutive naturals, for example, 72919429 + ... + 72922308.

Almost surely, 2^210012101280 is an apocalyptic number.

210012101280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210012101280 is an abundant number, since it is smaller than the sum of its proper divisors (506654199252).

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

210012101280 is a wasteful number, since it uses less digits than its factorization.

210012101280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145841758 (or 145841747 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 210012101280 its reverse (82101210012), we get a palindrome (292113311292).

The spelling of 210012101280 in words is "two hundred ten billion, twelve million, one hundred one thousand, two hundred eighty".