220100012 has 12 divisors (see below), whose sum is σ = 420191016. Its totient is φ = 100045440.

The previous prime is 220099973. The next prime is 220100039. The reversal of 220100012 is 210001022.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2501093 + ... + 2501180.

It is an arithmetic number, because the mean of its divisors is an integer number (35015918).

Almost surely, 2^220100012 is an apocalyptic number.

220100012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

220100012 is a deficient number, since it is larger than the sum of its proper divisors (200091004).

220100012 is a wasteful number, since it uses less digits than its factorization.

220100012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5002288 (or 5002286 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 220100012 is about 14835.7679949506. The cubic root of 220100012 is about 603.7725376267.

Adding to 220100012 its reverse (210001022), we get a palindrome (430101034).

The spelling of 220100012 in words is "two hundred twenty million, one hundred thousand, twelve".