221442130154341 has 4 divisors (see below), whose sum is σ = 221442278657472. Its totient is φ = 221441981651212.

The previous prime is 221442130154339. The next prime is 221442130154347. The reversal of 221442130154341 is 143451031244122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 221442130154341 - 2¹ = 221442130154339 is a prime.

It is a super-2 number, since 2×221442130154341² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 221442130154341.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221442130154347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71991901 + ... + 75004786.

It is an arithmetic number, because the mean of its divisors is an integer number (55360569664368).

Almost surely, 2^{221442130154341} is an apocalyptic number.

It is an amenable number.

221442130154341 is a deficient number, since it is larger than the sum of its proper divisors (148503131).

221442130154341 is a wasteful number, since it uses less digits than its factorization.

221442130154341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148503130.

The product of its (nonzero) digits is 92160, while the sum is 37.

Adding to 221442130154341 its reverse (143451031244122), we get a palindrome (364893161398463).

The spelling of 221442130154341 in words is "two hundred twenty-one trillion, four hundred forty-two billion, one hundred thirty million, one hundred fifty-four thousand, three hundred forty-one".