20200112101220 has 24 divisors (see below), whose sum is σ = 42420799399608. Its totient is φ = 8079937414400.

The previous prime is 20200112101177. The next prime is 20200112101229. The reversal of 20200112101220 is 2210121100202.

It can be written as a sum of positive squares in 4 ways, for example, as 11219337822784 + 8980774278436 = 3349528^2 + 2996794^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20200112101195 and 20200112101204.

It is not an unprimeable number, because it can be changed into a prime (20200112101229) 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, 5163491 + ... + 8189130.

It is an arithmetic number, because the mean of its divisors is an integer number (1767533308317).

Almost surely, 2^{20200112101220} is an apocalyptic number.

20200112101220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20200112101220 is an abundant number, since it is smaller than the sum of its proper divisors (22220687298388).

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

20200112101220 is a wasteful number, since it uses less digits than its factorization.

20200112101220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13428271 (or 13428269 counting only the distinct ones).

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

Adding to 20200112101220 its reverse (2210121100202), we get a palindrome (22410233201422).

The spelling of 20200112101220 in words is "twenty trillion, two hundred billion, one hundred twelve million, one hundred one thousand, two hundred twenty".