20000211120020 has 24 divisors (see below), whose sum is σ = 44471057667624. Its totient is φ = 7529491245056.

The previous prime is 20000211119971. The next prime is 20000211120041. The reversal of 20000211120020 is 2002111200002.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 6637764820996 + 13362446299024 = 2576386^2 + 3655468^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20000211119983 and 20000211120010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29412074837 + ... + 29412075516.

It is an arithmetic number, because the mean of its divisors is an integer number (1852960736151).

Almost surely, 2^{20000211120020} is an apocalyptic number.

20000211120020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20000211120020 is an abundant number, since it is smaller than the sum of its proper divisors (24470846547604).

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

20000211120020 is a wasteful number, since it uses less digits than its factorization.

20000211120020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58824150379 (or 58824150377 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20000211120020 its reverse (2002111200002), we get a palindrome (22002322320022).

The spelling of 20000211120020 in words is "twenty trillion, two hundred eleven million, one hundred twenty thousand, twenty".