123020220021212 has 12 divisors (see below), whose sum is σ = 215377663401096. Its totient is φ = 61483744763760.

The previous prime is 123020220021197. The next prime is 123020220021217. The reversal of 123020220021212 is 212120022020321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123020220021217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6591301214 + ... + 6591319877.

It is an arithmetic number, because the mean of its divisors is an integer number (17948138616758).

Almost surely, 2^{123020220021212} is an apocalyptic number.

It is an amenable number.

123020220021212 is a deficient number, since it is larger than the sum of its proper divisors (92357443379884).

123020220021212 is a wasteful number, since it uses less digits than its factorization.

123020220021212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13182623428 (or 13182623426 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 123020220021212 its reverse (212120022020321), we get a palindrome (335140242041533).

The spelling of 123020220021212 in words is "one hundred twenty-three trillion, twenty billion, two hundred twenty million, twenty-one thousand, two hundred twelve".