342220021442 has 32 divisors (see below), whose sum is σ = 564042890880. Its totient is φ = 154767594240.

The previous prime is 342220021411. The next prime is 342220021447. The reversal of 342220021442 is 244120022243.

It is a super-2 number, since 2×342220021442² (a number of 24 digits) contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (342220021447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 267767 + ... + 869562.

It is an arithmetic number, because the mean of its divisors is an integer number (17626340340).

Almost surely, 2^342220021442 is an apocalyptic number.

342220021442 is a deficient number, since it is larger than the sum of its proper divisors (221822869438).

342220021442 is a wasteful number, since it uses less digits than its factorization.

342220021442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1137578.

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 342220021442 its reverse (244120022243), we get a palindrome (586340043685).

The spelling of 342220021442 in words is "three hundred forty-two billion, two hundred twenty million, twenty-one thousand, four hundred forty-two".