221423202240412 has 48 divisors (see below), whose sum is σ = 417524191207200. Its totient is φ = 102368757123072.

The previous prime is 221423202240391. The next prime is 221423202240421. The reversal of 221423202240412 is 214042202324122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63448537 + ... + 66847312.

It is an arithmetic number, because the mean of its divisors is an integer number (8698420650150).

Almost surely, 2^{221423202240412} is an apocalyptic number.

It is an amenable number.

221423202240412 is a deficient number, since it is larger than the sum of its proper divisors (196100988966788).

221423202240412 is a wasteful number, since it uses less digits than its factorization.

221423202240412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130296310 (or 130296308 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 31.

Adding to 221423202240412 its reverse (214042202324122), we get a palindrome (435465404564534).

The spelling of 221423202240412 in words is "two hundred twenty-one trillion, four hundred twenty-three billion, two hundred two million, two hundred forty thousand, four hundred twelve".