2201020120 has 32 divisors (see below), whose sum is σ = 5333242320. Its totient is φ = 812684160.

The previous prime is 2201020111. The next prime is 2201020123. The reversal of 2201020120 is 210201022.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 2201020097 and 2201020106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2201020123) 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, 2115846 + ... + 2116885.

Almost surely, 2^2201020120 is an apocalyptic number.

2201020120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2201020120 is an abundant number, since it is smaller than the sum of its proper divisors (3132222200).

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

2201020120 is a wasteful number, since it uses less digits than its factorization.

2201020120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4232755 (or 4232751 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 2201020120 is about 46915.0308536614. The cubic root of 2201020120 is about 1300.7924399318.

Adding to 2201020120 its reverse (210201022), we get a palindrome (2411221142).

The spelling of 2201020120 in words is "two billion, two hundred one million, twenty thousand, one hundred twenty".