3200120121 has 16 divisors (see below), whose sum is σ = 4780525248. Its totient is φ = 1887048000.

The previous prime is 3200120089. The next prime is 3200120141. The reversal of 3200120121 is 1210210023.

It is not a de Polignac number, because 3200120121 - 2⁵ = 3200120089 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3200120097 and 3200120106.

It is not an unprimeable number, because it can be changed into a prime (3200120141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1309230 + ... + 1311671.

It is an arithmetic number, because the mean of its divisors is an integer number (298782828).

Almost surely, 2^3200120121 is an apocalyptic number.

It is an amenable number.

3200120121 is a deficient number, since it is larger than the sum of its proper divisors (1580405127).

3200120121 is a wasteful number, since it uses less digits than its factorization.

3200120121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2620952.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 3200120121 is about 56569.6042146310. The cubic root of 3200120121 is about 1473.6310379566.

Adding to 3200120121 its reverse (1210210023), we get a palindrome (4410330144).

It can be divided in two parts, 3200 and 120121, that added together give a palindrome (123321).

The spelling of 3200120121 in words is "three billion, two hundred million, one hundred twenty thousand, one hundred twenty-one".