342220021443 has 16 divisors (see below), whose sum is σ = 507002260000. Its totient is φ = 228142344960.

The previous prime is 342220021411. The next prime is 342220021447. The reversal of 342220021443 is 344120022243.

342220021443 is a `hidden beast` number, since 3 + 422 + 20 + 0 + 214 + 4 + 3 = 666.

It is not a de Polignac number, because 342220021443 - 2⁵ = 342220021411 is a prime.

It is a super-2 number, since 2×342220021443² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

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

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2014683 + ... + 2177931.

It is an arithmetic number, because the mean of its divisors is an integer number (31687641250).

Almost surely, 2^342220021443 is an apocalyptic number.

342220021443 is a deficient number, since it is larger than the sum of its proper divisors (164782238557).

342220021443 is a wasteful number, since it uses less digits than its factorization.

342220021443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240899 (or 240893 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 342220021443 its reverse (344120022243), we get a palindrome (686340043686).

The spelling of 342220021443 in words is "three hundred forty-two billion, two hundred twenty million, twenty-one thousand, four hundred forty-three".