220011100212 has 24 divisors (see below), whose sum is σ = 515186142912. Its totient is φ = 73076046400.

The previous prime is 220011100189. The next prime is 220011100223. The reversal of 220011100212 is 212001110022.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32619864 + ... + 32626607.

It is an arithmetic number, because the mean of its divisors is an integer number (21466089288).

Almost surely, 2^220011100212 is an apocalyptic number.

It is an amenable number.

220011100212 is an abundant number, since it is smaller than the sum of its proper divisors (295175042700).

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

220011100212 is a wasteful number, since it uses less digits than its factorization.

220011100212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65246759 (or 65246757 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 220011100212 its reverse (212001110022), we get a palindrome (432012210234).

The spelling of 220011100212 in words is "two hundred twenty billion, eleven million, one hundred thousand, two hundred twelve".