1220012020142 has 8 divisors (see below), whose sum is σ = 1830473157432. Its totient is φ = 609854301000.

The previous prime is 1220012020141. The next prime is 1220012020163. The reversal of 1220012020142 is 2410202100221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1220012020142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220012020141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75844484 + ... + 75860567.

It is an arithmetic number, because the mean of its divisors is an integer number (228809144679).

Almost surely, 2^{1220012020142} is an apocalyptic number.

1220012020142 is a deficient number, since it is larger than the sum of its proper divisors (610461137290).

1220012020142 is a wasteful number, since it uses less digits than its factorization.

1220012020142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151709074.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 1220012020142 its reverse (2410202100221), we get a palindrome (3630214120363).

The spelling of 1220012020142 in words is "one trillion, two hundred twenty billion, twelve million, twenty thousand, one hundred forty-two".