123002012220 has 24 divisors (see below), whose sum is σ = 344405634384. Its totient is φ = 32800536576.

The previous prime is 123002012201. The next prime is 123002012227. The reversal of 123002012220 is 22210200321.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 123002012220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123002012227) 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, 1025016709 + ... + 1025016828.

It is an arithmetic number, because the mean of its divisors is an integer number (14350234766).

Almost surely, 2^123002012220 is an apocalyptic number.

123002012220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123002012220 is an abundant number, since it is smaller than the sum of its proper divisors (221403622164).

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

123002012220 is a wasteful number, since it uses less digits than its factorization.

123002012220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2050033549 (or 2050033547 counting only the distinct ones).

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

Adding to 123002012220 its reverse (22210200321), we get a palindrome (145212212541).

The spelling of 123002012220 in words is "one hundred twenty-three billion, two million, twelve thousand, two hundred twenty".