2123212123212 has 48 divisors (see below), whose sum is σ = 5140470730752. Its totient is φ = 681358371840.

The previous prime is 2123212123163. The next prime is 2123212123213.

2123212123212 is nontrivially palindromic in base 10.

2123212123212 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It is a nude number because it is divisible by every one of its digits.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (2123212123213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14714628 + ... + 14858219.

It is an arithmetic number, because the mean of its divisors is an integer number (107093140224).

Almost surely, 2^{2123212123212} is an apocalyptic number.

It is an amenable number.

2123212123212 is an abundant number, since it is smaller than the sum of its proper divisors (3017258607540).

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

2123212123212 is a wasteful number, since it uses less digits than its factorization.

2123212123212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29573078 (or 29573076 counting only the distinct ones).

The product of its digits is 1152, while the sum is 24.

The spelling of 2123212123212 in words is "two trillion, one hundred twenty-three billion, two hundred twelve million, one hundred twenty-three thousand, two hundred twelve".