21050310220140 has 48 divisors (see below), whose sum is σ = 58942745699040. Its totient is φ = 5613237288960.

The previous prime is 21050310220117. The next prime is 21050310220157. The reversal of 21050310220140 is 4102201305012.

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, 3681471 + ... + 7460150.

It is an arithmetic number, because the mean of its divisors is an integer number (1227973868730).

Almost surely, 2^{21050310220140} is an apocalyptic number.

21050310220140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21050310220140 is an abundant number, since it is smaller than the sum of its proper divisors (37892435478900).

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

21050310220140 is a wasteful number, since it uses less digits than its factorization.

21050310220140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11173122 (or 11173120 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 21050310220140 its reverse (4102201305012), we get a palindrome (25152511525152).

The spelling of 21050310220140 in words is "twenty-one trillion, fifty billion, three hundred ten million, two hundred twenty thousand, one hundred forty".