2201002120 has 32 divisors (see below), whose sum is σ = 4997698200. Its totient is φ = 872322048.

The previous prime is 2201002117. The next prime is 2201002157. The reversal of 2201002120 is 212001022.

It can be written as a sum of positive squares in 4 ways, for example, as 1436258404 + 764743716 = 37898^2 + 27654^2 .

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 = 2201002097 and 2201002106.

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, 248049 + ... + 256768.

Almost surely, 2^2201002120 is an apocalyptic number.

2201002120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2201002120 is an abundant number, since it is smaller than the sum of its proper divisors (2796696080).

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

2201002120 is a wasteful number, since it uses less digits than its factorization.

2201002120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504937 (or 504933 counting only the distinct ones).

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

The square root of 2201002120 is about 46914.8390170956. The cubic root of 2201002120 is about 1300.7888939506.

Adding to 2201002120 its reverse (212001022), we get a palindrome (2413003142).

The spelling of 2201002120 in words is "two billion, two hundred one million, two thousand, one hundred twenty".