490000012222121 has 16 divisors (see below), whose sum is σ = 520254184057344. Its totient is φ = 459904882489344.

The previous prime is 490000012222117. The next prime is 490000012222129. The reversal of 490000012222121 is 121222210000094.

It is a cyclic number.

It is not a de Polignac number, because 490000012222121 - 2² = 490000012222117 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (490000012222129) 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, 192537881 + ... + 195066233.

It is an arithmetic number, because the mean of its divisors is an integer number (32515886503584).

Almost surely, 2^{490000012222121} is an apocalyptic number.

It is an amenable number.

490000012222121 is a deficient number, since it is larger than the sum of its proper divisors (30254171835223).

490000012222121 is a wasteful number, since it uses less digits than its factorization.

490000012222121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2559800.

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

The spelling of 490000012222121 in words is "four hundred ninety trillion, twelve million, two hundred twenty-two thousand, one hundred twenty-one".