2111420410220 has 96 divisors (see below), whose sum is σ = 4877300736000. Its totient is φ = 761420217600.

The previous prime is 2111420410201. The next prime is 2111420410243. The reversal of 2111420410220 is 220140241112.

It is a super-2 number, since 2×2111420410220² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 2111420410192 and 2111420410201.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20633141 + ... + 20735219.

It is an arithmetic number, because the mean of its divisors is an integer number (50805216000).

Almost surely, 2^{2111420410220} is an apocalyptic number.

2111420410220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2111420410220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2438650368000).

2111420410220 is an abundant number, since it is smaller than the sum of its proper divisors (2765880325780).

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

2111420410220 is a wasteful number, since it uses less digits than its factorization.

2111420410220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102879 (or 102877 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 2111420410220 its reverse (220140241112), we get a palindrome (2331560651332).

The spelling of 2111420410220 in words is "two trillion, one hundred eleven billion, four hundred twenty million, four hundred ten thousand, two hundred twenty".