1230123112212 has 24 divisors (see below), whose sum is σ = 2870310821056. Its totient is φ = 410037671808.

The previous prime is 1230123112171. The next prime is 1230123112219. The reversal of 1230123112212 is 2122113210321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230123112219) 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, 1426713 + ... + 2120319.

Almost surely, 2^{1230123112212} is an apocalyptic number.

1230123112212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1230123112212 is an abundant number, since it is smaller than the sum of its proper divisors (1640187708844).

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

1230123112212 is a wasteful number, since it uses less digits than its factorization.

1230123112212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 841407 (or 841405 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 1230123112212 its reverse (2122113210321), we get a palindrome (3352236322533).

The spelling of 1230123112212 in words is "one trillion, two hundred thirty billion, one hundred twenty-three million, one hundred twelve thousand, two hundred twelve".