212002220123 has 8 divisors (see below), whose sum is σ = 213076912800. Its totient is φ = 210928822848.

The previous prime is 212002220069. The next prime is 212002220167. The reversal of 212002220123 is 321022200212.

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 212002220123 - 2⁸ = 212002219867 is a prime.

It is a super-2 number, since 2×212002220123² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212002220323) 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, 5138 + ... + 651176.

It is an arithmetic number, because the mean of its divisors is an integer number (26634614100).

Almost surely, 2^212002220123 is an apocalyptic number.

212002220123 is a deficient number, since it is larger than the sum of its proper divisors (1074692677).

212002220123 is a wasteful number, since it uses less digits than its factorization.

212002220123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 647701.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 212002220123 its reverse (321022200212), we get a palindrome (533024420335).

The spelling of 212002220123 in words is "two hundred twelve billion, two million, two hundred twenty thousand, one hundred twenty-three".