20112000101220 has 24 divisors (see below), whose sum is σ = 56313600283584. Its totient is φ = 5363200026976.

The previous prime is 20112000101183. The next prime is 20112000101231. The reversal of 20112000101220 is 2210100021102.

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 = 20112000101196 and 20112000101205.

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, 167600000784 + ... + 167600000903.

It is an arithmetic number, because the mean of its divisors is an integer number (2346400011816).

Almost surely, 2^{20112000101220} is an apocalyptic number.

20112000101220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20112000101220 is an abundant number, since it is smaller than the sum of its proper divisors (36201600182364).

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

20112000101220 is a wasteful number, since it uses less digits than its factorization.

20112000101220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335200001699 (or 335200001697 counting only the distinct ones).

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

Adding to 20112000101220 its reverse (2210100021102), we get a palindrome (22322100122322).

The spelling of 20112000101220 in words is "twenty trillion, one hundred twelve billion, one hundred one thousand, two hundred twenty".