20210001011020 has 48 divisors (see below), whose sum is σ = 42499474395840. Its totient is φ = 8072864464896.

The previous prime is 20210001010993. The next prime is 20210001011033. The reversal of 20210001011020 is 2011010001202.

It is a super-2 number, since 2×20210001011020² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 20210001010988 and 20210001011006.

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, 234240409 + ... + 234326671.

It is an arithmetic number, because the mean of its divisors is an integer number (885405716580).

Almost surely, 2^{20210001011020} is an apocalyptic number.

20210001011020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20210001011020 is an abundant number, since it is smaller than the sum of its proper divisors (22289473384820).

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

20210001011020 is a wasteful number, since it uses less digits than its factorization.

20210001011020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102274 (or 102272 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 20210001011020 its reverse (2011010001202), we get a palindrome (22221011012222).

The spelling of 20210001011020 in words is "twenty trillion, two hundred ten billion, one million, eleven thousand, twenty".