212112012010321 has 16 divisors (see below), whose sum is σ = 216530960237568. Its totient is φ = 207708791846400.

The previous prime is 212112012010307. The next prime is 212112012010363. The reversal of 212112012010321 is 123010210211212.

It is a cyclic number.

It is not a de Polignac number, because 212112012010321 - 2⁵ = 212112012010289 is a prime.

It is a super-3 number, since 3×212112012010321³ (a number of 44 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212112012010421) 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, 74820880 + ... + 77604046.

It is an arithmetic number, because the mean of its divisors is an integer number (13533185014848).

Almost surely, 2^{212112012010321} is an apocalyptic number.

It is an amenable number.

212112012010321 is a deficient number, since it is larger than the sum of its proper divisors (4418948227247).

212112012010321 is a wasteful number, since it uses less digits than its factorization.

212112012010321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2785992.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 212112012010321 its reverse (123010210211212), we get a palindrome (335122222221533).

The spelling of 212112012010321 in words is "two hundred twelve trillion, one hundred twelve billion, twelve million, ten thousand, three hundred twenty-one".