221404214412123 has 8 divisors (see below), whose sum is σ = 295205900297808. Its totient is φ = 147602669067264.

The previous prime is 221404214412107. The next prime is 221404214412167. The reversal of 221404214412123 is 321214412404122.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 221404214412123 - 2⁴ = 221404214412107 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221404214412193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31402690 + ... + 37801287.

It is an arithmetic number, because the mean of its divisors is an integer number (36900737537226).

Almost surely, 2^{221404214412123} is an apocalyptic number.

221404214412123 is a deficient number, since it is larger than the sum of its proper divisors (73801685885685).

221404214412123 is a wasteful number, since it uses less digits than its factorization.

221404214412123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70270413.

The product of its (nonzero) digits is 24576, while the sum is 33.

Adding to 221404214412123 its reverse (321214412404122), we get a palindrome (542618626816245).

The spelling of 221404214412123 in words is "two hundred twenty-one trillion, four hundred four billion, two hundred fourteen million, four hundred twelve thousand, one hundred twenty-three".