2211490857 has 8 divisors (see below), whose sum is σ = 2949142240. Its totient is φ = 1474083360.

The previous prime is 2211490847. The next prime is 2211490861. The reversal of 2211490857 is 7580941122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2211490857 - 2⁶ = 2211490793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2211490847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38644 + ... + 76917.

It is an arithmetic number, because the mean of its divisors is an integer number (368642780).

Almost surely, 2^2211490857 is an apocalyptic number.

It is an amenable number.

2211490857 is a deficient number, since it is larger than the sum of its proper divisors (737651383).

2211490857 is a wasteful number, since it uses less digits than its factorization.

2211490857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121943.

The product of its (nonzero) digits is 40320, while the sum is 39.

The square root of 2211490857 is about 47026.4910130450. The cubic root of 2211490857 is about 1302.8518962303.

The spelling of 2211490857 in words is "two billion, two hundred eleven million, four hundred ninety thousand, eight hundred fifty-seven".