20112102201020 has 24 divisors (see below), whose sum is σ = 42241962004368. Its totient is φ = 8043593760000.

The previous prime is 20112102201019. The next prime is 20112102201053. The reversal of 20112102201020 is 2010220121102.

It is a super-4 number, since 4×20112102201020⁴ (a number of 54 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20112102200986 and 20112102201004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77812781 + ... + 78070820.

It is an arithmetic number, because the mean of its divisors is an integer number (1760081750182).

Almost surely, 2^{20112102201020} is an apocalyptic number.

20112102201020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20112102201020 is an abundant number, since it is smaller than the sum of its proper divisors (22129859803348).

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

20112102201020 is a wasteful number, since it uses less digits than its factorization.

20112102201020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155890061 (or 155890059 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20112102201020 its reverse (2010220121102), we get a palindrome (22122322322122).

The spelling of 20112102201020 in words is "twenty trillion, one hundred twelve billion, one hundred two million, two hundred one thousand, twenty".