220412 has 6 divisors (see below), whose sum is σ = 385728. Its totient is φ = 110204.

The previous prime is 220411. The next prime is 220421. The reversal of 220412 is 214022.

It is a junction number, because it is equal to n+sod(n) for n = 220393 and 220402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27548 + ... + 27555.

It is an arithmetic number, because the mean of its divisors is an integer number (64288).

2²²⁰⁴¹² is an apocalyptic number.

It is an amenable number.

220412 is a deficient number, since it is larger than the sum of its proper divisors (165316).

220412 is a wasteful number, since it uses less digits than its factorization.

220412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55107 (or 55105 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 220412 is about 469.4805640279. The cubic root of 220412 is about 60.4057682020.

Adding to 220412 its reverse (214022), we get a palindrome (434434).

The spelling of 220412 in words is "two hundred twenty thousand, four hundred twelve", and thus it is an iban number.