1220042151224 has 32 divisors (see below), whose sum is σ = 2482944683520. Its totient is φ = 558662541696.

The previous prime is 1220042151197. The next prime is 1220042151233. The reversal of 1220042151224 is 4221512400221.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a junction number, because it is equal to n+sod(n) for n = 1220042151193 and 1220042151202.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 46172519 + ... + 46198934.

It is an arithmetic number, because the mean of its divisors is an integer number (77592021360).

Almost surely, 2^{1220042151224} is an apocalyptic number.

It is an amenable number.

1220042151224 is an abundant number, since it is smaller than the sum of its proper divisors (1262902532296).

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

1220042151224 is a wasteful number, since it uses less digits than its factorization.

1220042151224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92371599 (or 92371595 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 26.

Adding to 1220042151224 its reverse (4221512400221), we get a palindrome (5441554551445).

The spelling of 1220042151224 in words is "one trillion, two hundred twenty billion, forty-two million, one hundred fifty-one thousand, two hundred twenty-four".