20000210100020 has 24 divisors (see below), whose sum is σ = 44471055399624. Its totient is φ = 7529490861056.

The previous prime is 20000210100019. The next prime is 20000210100023. The reversal of 20000210100020 is 2000101200002.

It can be written as a sum of positive squares in 4 ways, for example, as 5297924165284 + 14702285934736 = 2301722^2 + 3834356^2 .

It is a super-4 number, since 4×20000210100020⁴ (a number of 54 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20000210099980 and 20000210100007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20000210100023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29412073337 + ... + 29412074016.

It is an arithmetic number, because the mean of its divisors is an integer number (1852960641651).

Almost surely, 2^{20000210100020} is an apocalyptic number.

20000210100020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20000210100020 is an abundant number, since it is smaller than the sum of its proper divisors (24470845299604).

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

20000210100020 is a wasteful number, since it uses less digits than its factorization.

20000210100020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58824147379 (or 58824147377 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 8.

Adding to 20000210100020 its reverse (2000101200002), we get a palindrome (22000311300022).

The spelling of 20000210100020 in words is "twenty trillion, two hundred ten million, one hundred thousand, twenty".