210031021441020 has 96 divisors (see below), whose sum is σ = 633820260806208. Its totient is φ = 51659458025472.

The previous prime is 210031021440941. The next prime is 210031021441079. The reversal of 210031021441020 is 20144120130012.

It is a super-2 number, since 2×210031021441020² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 104434849 + ... + 106426968.

It is an arithmetic number, because the mean of its divisors is an integer number (6602294383398).

Almost surely, 2^{210031021441020} is an apocalyptic number.

210031021441020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210031021441020 is an abundant number, since it is smaller than the sum of its proper divisors (423789239365188).

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

210031021441020 is a wasteful number, since it uses less digits than its factorization.

210031021441020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210863119 (or 210863117 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 210031021441020 its reverse (20144120130012), we get a palindrome (230175141571032).

The spelling of 210031021441020 in words is "two hundred ten trillion, thirty-one billion, twenty-one million, four hundred forty-one thousand, twenty".