123522212142 has 80 divisors (see below), whose sum is σ = 324870770400. Its totient is φ = 34338209472.

The previous prime is 123522212123. The next prime is 123522212161. The reversal of 123522212142 is 241212225321.

123522212142 is a `hidden beast` number, since 12 + 3 + 522 + 2 + 121 + 4 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (123522212123) and next prime (123522212161).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1430017 + ... + 1513932.

It is an arithmetic number, because the mean of its divisors is an integer number (4060884630).

Almost surely, 2^123522212142 is an apocalyptic number.

123522212142 is an abundant number, since it is smaller than the sum of its proper divisors (201348558258).

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

123522212142 is a wasteful number, since it uses less digits than its factorization.

123522212142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2944007 (or 2943998 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

Adding to 123522212142 its reverse (241212225321), we get a palindrome (364734437463).

The spelling of 123522212142 in words is "one hundred twenty-three billion, five hundred twenty-two million, two hundred twelve thousand, one hundred forty-two".