240200121 has 32 divisors (see below), whose sum is σ = 379641856. Its totient is φ = 132192000.

The previous prime is 240200117. The next prime is 240200131. The reversal of 240200121 is 121002042.

240200121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 240200121 - 2² = 240200117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 240200097 and 240200106.

It is not an unprimeable number, because it can be changed into a prime (240200101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 156126 + ... + 157656.

It is an arithmetic number, because the mean of its divisors is an integer number (11863808).

Almost surely, 2^240200121 is an apocalyptic number.

240200121 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

240200121 is a deficient number, since it is larger than the sum of its proper divisors (139441735).

240200121 is a wasteful number, since it uses less digits than its factorization.

240200121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1813.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 240200121 is about 15498.3909164790. The cubic root of 240200121 is about 621.6191816695.

Adding to 240200121 its reverse (121002042), we get a palindrome (361202163).

The spelling of 240200121 in words is "two hundred forty million, two hundred thousand, one hundred twenty-one".