1242143002212 has 144 divisors (see below), whose sum is σ = 3379687863552. Its totient is φ = 354040727040.

The previous prime is 1242143002129. The next prime is 1242143002223. The reversal of 1242143002212 is 2122003412421.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 663891637 + ... + 663893507.

It is an arithmetic number, because the mean of its divisors is an integer number (23470054608).

Almost surely, 2^{1242143002212} is an apocalyptic number.

1242143002212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1242143002212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1689843931776).

1242143002212 is an abundant number, since it is smaller than the sum of its proper divisors (2137544861340).

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

1242143002212 is a wasteful number, since it uses less digits than its factorization.

1242143002212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4018 (or 4009 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 1242143002212 its reverse (2122003412421), we get a palindrome (3364146414633).

The spelling of 1242143002212 in words is "one trillion, two hundred forty-two billion, one hundred forty-three million, two thousand, two hundred twelve".