2049412121 has 4 divisors (see below), whose sum is σ = 2097072912. Its totient is φ = 2001751332.

The previous prime is 2049412117. The next prime is 2049412159. The reversal of 2049412121 is 1212149402.

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.

It is a cyclic number.

It is not a de Polignac number, because 2049412121 - 2² = 2049412117 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2049412621) 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, 23830331 + ... + 23830416.

It is an arithmetic number, because the mean of its divisors is an integer number (524268228).

Almost surely, 2^2049412121 is an apocalyptic number.

It is an amenable number.

2049412121 is a deficient number, since it is larger than the sum of its proper divisors (47660791).

2049412121 is an equidigital number, since it uses as much as digits as its factorization.

2049412121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47660790.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 2049412121 is about 45270.4331876778. The cubic root of 2049412121 is about 1270.2126498238.

The spelling of 2049412121 in words is "two billion, forty-nine million, four hundred twelve thousand, one hundred twenty-one".