221462412 has 12 divisors (see below), whose sum is σ = 516745656. Its totient is φ = 73820800.

The previous prime is 221462411. The next prime is 221462429. The reversal of 221462412 is 214264122.

It is a happy number.

221462412 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (221462411) 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, 9227589 + ... + 9227612.

It is an arithmetic number, because the mean of its divisors is an integer number (43062138).

Almost surely, 2^221462412 is an apocalyptic number.

It is an amenable number.

221462412 is an abundant number, since it is smaller than the sum of its proper divisors (295283244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221462412 is a wasteful number, since it uses less digits than its factorization.

221462412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18455208 (or 18455206 counting only the distinct ones).

The product of its digits is 1536, while the sum is 24.

The square root of 221462412 is about 14881.6132190028. The cubic root of 221462412 is about 605.0157425952.

The spelling of 221462412 in words is "two hundred twenty-one million, four hundred sixty-two thousand, four hundred twelve".