3123021223212 has 96 divisors (see below), whose sum is σ = 8295689654784. Its totient is φ = 905163494400.

The previous prime is 3123021223199. The next prime is 3123021223219. The reversal of 3123021223212 is 2123221203213.

It is a super-4 number, since 4×3123021223212⁴ (a number of 51 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (3123021223219) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 68229438 + ... + 68275194.

It is an arithmetic number, because the mean of its divisors is an integer number (86413433904).

Almost surely, 2^{3123021223212} is an apocalyptic number.

It is an amenable number.

3123021223212 is an abundant number, since it is smaller than the sum of its proper divisors (5172668431572).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3123021223212 is a wasteful number, since it uses less digits than its factorization.

3123021223212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68279 (or 68277 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 3123021223212 its reverse (2123221203213), we get a palindrome (5246242426425).

The spelling of 3123021223212 in words is "three trillion, one hundred twenty-three billion, twenty-one million, two hundred twenty-three thousand, two hundred twelve".