123020220012 has 24 divisors (see below), whose sum is σ = 287144468016. Its totient is φ = 40992841728.

The previous prime is 123020219977. The next prime is 123020220013. The reversal of 123020220012 is 210022020321.

It is a happy number.

123020220012 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 123020219973 and 123020220000.

It is not an unprimeable number, because it can be changed into a prime (123020220013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1700373 + ... + 1771244.

It is an arithmetic number, because the mean of its divisors is an integer number (11964352834).

Almost surely, 2^123020220012 is an apocalyptic number.

123020220012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

123020220012 is an abundant number, since it is smaller than the sum of its proper divisors (164124248004).

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

123020220012 is a wasteful number, since it uses less digits than its factorization.

123020220012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3474577 (or 3474575 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 123020220012 its reverse (210022020321), we get a palindrome (333042240333).

The spelling of 123020220012 in words is "one hundred twenty-three billion, twenty million, two hundred twenty thousand, twelve".