1722212113 has 8 divisors (see below), whose sum is σ = 1726583040. Its totient is φ = 1717848480.

The previous prime is 1722212111. The next prime is 1722212119. The reversal of 1722212113 is 3112122271.

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

It is a cyclic number.

It is not a de Polignac number, because 1722212113 - 2¹ = 1722212111 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1722212111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1139028 + ... + 1140538.

It is an arithmetic number, because the mean of its divisors is an integer number (215822880).

Almost surely, 2^1722212113 is an apocalyptic number.

It is an amenable number.

1722212113 is a deficient number, since it is larger than the sum of its proper divisors (4370927).

1722212113 is a wasteful number, since it uses less digits than its factorization.

1722212113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3647.

The product of its digits is 336, while the sum is 22.

The square root of 1722212113 is about 41499.5435276100. The cubic root of 1722212113 is about 1198.6587126915.

Adding to 1722212113 its reverse (3112122271), we get a palindrome (4834334384).

The spelling of 1722212113 in words is "one billion, seven hundred twenty-two million, two hundred twelve thousand, one hundred thirteen".