221214302040343 has 4 divisors (see below), whose sum is σ = 226358820692488. Its totient is φ = 216069783388200.

The previous prime is 221214302040283. The next prime is 221214302040373. The reversal of 221214302040343 is 343040203412122.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221214302040343 is a prime.

It is a super-2 number, since 2×221214302040343² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221214302040373) 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, 2572259326008 + ... + 2572259326093.

It is an arithmetic number, because the mean of its divisors is an integer number (56589705173122).

Almost surely, 2^{221214302040343} is an apocalyptic number.

221214302040343 is a deficient number, since it is larger than the sum of its proper divisors (5144518652145).

221214302040343 is an equidigital number, since it uses as much as digits as its factorization.

221214302040343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5144518652144.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 221214302040343 its reverse (343040203412122), we get a palindrome (564254505452465).

The spelling of 221214302040343 in words is "two hundred twenty-one trillion, two hundred fourteen billion, three hundred two million, forty thousand, three hundred forty-three".