220011212212 has 48 divisors (see below), whose sum is σ = 426483304128. Its totient is φ = 98467902720.

The previous prime is 220011212159. The next prime is 220011212231. The reversal of 220011212212 is 212212110022.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6991698 + ... + 7023094.

It is an arithmetic number, because the mean of its divisors is an integer number (8885068836).

Almost surely, 2^220011212212 is an apocalyptic number.

220011212212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

220011212212 is a deficient number, since it is larger than the sum of its proper divisors (206472091916).

220011212212 is a wasteful number, since it uses less digits than its factorization.

220011212212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33856 (or 33854 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 220011212212 its reverse (212212110022), we get a palindrome (432223322234).

The spelling of 220011212212 in words is "two hundred twenty billion, eleven million, two hundred twelve thousand, two hundred twelve".