2120411220 has 24 divisors (see below), whose sum is σ = 5937151584. Its totient is φ = 565442976.

The previous prime is 2120411219. The next prime is 2120411221. The reversal of 2120411220 is 221140212.

It is an interprime number because it is at equal distance from previous prime (2120411219) and next prime (2120411221).

It is a super-2 number, since 2×2120411220² = 8992287483803776800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 2120411220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120411221) 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, 17670034 + ... + 17670153.

It is an arithmetic number, because the mean of its divisors is an integer number (247381316).

Almost surely, 2^2120411220 is an apocalyptic number.

2120411220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2120411220 is an abundant number, since it is smaller than the sum of its proper divisors (3816740364).

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

2120411220 is a wasteful number, since it uses less digits than its factorization.

2120411220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35340199 (or 35340197 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 2120411220 is about 46047.9230801998. The cubic root of 2120411220 is about 1284.7147130706.

Adding to 2120411220 its reverse (221140212), we get a palindrome (2341551432).

The spelling of 2120411220 in words is "two billion, one hundred twenty million, four hundred eleven thousand, two hundred twenty".