2040121201 has 4 divisors (see below), whose sum is σ = 2065945600. Its totient is φ = 2014296804.

The previous prime is 2040121199. The next prime is 2040121211. The reversal of 2040121201 is 1021210402.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1021210402 = 2 ⋅510605201.

It is a cyclic number.

It is not a de Polignac number, because 2040121201 - 2¹ = 2040121199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2040121211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12912081 + ... + 12912238.

It is an arithmetic number, because the mean of its divisors is an integer number (516486400).

Almost surely, 2^2040121201 is an apocalyptic number.

It is an amenable number.

2040121201 is a deficient number, since it is larger than the sum of its proper divisors (25824399).

2040121201 is an equidigital number, since it uses as much as digits as its factorization.

2040121201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25824398.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 2040121201 is about 45167.7008602386. The cubic root of 2040121201 is about 1268.2902574102.

Adding to 2040121201 its reverse (1021210402), we get a palindrome (3061331603).

The spelling of 2040121201 in words is "two billion, forty million, one hundred twenty-one thousand, two hundred one".