220711412 has 12 divisors (see below), whose sum is σ = 391536516. Its totient is φ = 108843840.

The previous prime is 220711411. The next prime is 220711433. The reversal of 220711412 is 214117022.

It can be written as a sum of positive squares in 2 ways, for example, as 100721296 + 119990116 = 10036^2 + 10954^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220711411) 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, 377639 + ... + 378222.

It is an arithmetic number, because the mean of its divisors is an integer number (32628043).

Almost surely, 2^220711412 is an apocalyptic number.

It is an amenable number.

220711412 is a deficient number, since it is larger than the sum of its proper divisors (170825104).

220711412 is a wasteful number, since it uses less digits than its factorization.

220711412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 755938 (or 755936 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 220711412 is about 14856.3593117560. The cubic root of 220711412 is about 604.3310795431.

Adding to 220711412 its reverse (214117022), we get a palindrome (434828434).

The spelling of 220711412 in words is "two hundred twenty million, seven hundred eleven thousand, four hundred twelve".