20012201011020 has 24 divisors (see below), whose sum is σ = 56034162831024. Its totient is φ = 5336586936256.

The previous prime is 20012201010979. The next prime is 20012201011067. The reversal of 20012201011020 is 2011010221002.

It is a super-2 number, since 2×20012201011020² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 20012201010987 and 20012201011005.

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, 166768341699 + ... + 166768341818.

It is an arithmetic number, because the mean of its divisors is an integer number (2334756784626).

Almost surely, 2^{20012201011020} is an apocalyptic number.

20012201011020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20012201011020 is an abundant number, since it is smaller than the sum of its proper divisors (36021961820004).

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

20012201011020 is a wasteful number, since it uses less digits than its factorization.

20012201011020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333536683529 (or 333536683527 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20012201011020 its reverse (2011010221002), we get a palindrome (22023211232022).

The spelling of 20012201011020 in words is "twenty trillion, twelve billion, two hundred one million, eleven thousand, twenty".