220023012 has 36 divisors (see below), whose sum is σ = 564305168. Its totient is φ = 66673200.

The previous prime is 220023007. The next prime is 220023019. The reversal of 220023012 is 210320022.

220023012 = T₈ + T₉ + ... + T₁₀₉₆.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (220023019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 74314 + ... + 77217.

Almost surely, 2^220023012 is an apocalyptic number.

220023012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

220023012 is an abundant number, since it is smaller than the sum of its proper divisors (344282156).

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

220023012 is a wasteful number, since it uses less digits than its factorization.

220023012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151560 (or 151547 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 220023012 is about 14833.1726882687. The cubic root of 220023012 is about 603.7021212927.

Adding to 220023012 its reverse (210320022), we get a palindrome (430343034).

The spelling of 220023012 in words is "two hundred twenty million, twenty-three thousand, twelve".