1212301232142 has 128 divisors (see below), whose sum is σ = 3343394976768. Its totient is φ = 282805862400.

The previous prime is 1212301231987. The next prime is 1212301232167. The reversal of 1212301232142 is 2412321032121.

It is a super-2 number, since 2×1212301232142² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2505459 + ... + 2949902.

It is an arithmetic number, because the mean of its divisors is an integer number (26120273256).

Almost surely, 2^{1212301232142} is an apocalyptic number.

1212301232142 is an abundant number, since it is smaller than the sum of its proper divisors (2131093744626).

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

1212301232142 is a wasteful number, since it uses less digits than its factorization.

1212301232142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5455434.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 1212301232142 its reverse (2412321032121), we get a palindrome (3624622264263).

The spelling of 1212301232142 in words is "one trillion, two hundred twelve billion, three hundred one million, two hundred thirty-two thousand, one hundred forty-two".