220111012011012 has 24 divisors (see below), whose sum is σ = 513597373274496. Its totient is φ = 73369621349088.

The previous prime is 220111012010987. The next prime is 220111012011091. The reversal of 220111012011012 is 210110210111022.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 220111012010982 and 220111012011000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88216828 + ... + 90677619.

It is an arithmetic number, because the mean of its divisors is an integer number (21399890553104).

Almost surely, 2^{220111012011012} is an apocalyptic number.

It is an amenable number.

220111012011012 is an abundant number, since it is smaller than the sum of its proper divisors (293486361263484).

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

220111012011012 is a wasteful number, since it uses less digits than its factorization.

220111012011012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178996987 (or 178996985 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 220111012011012 its reverse (210110210111022), we get a palindrome (430221222122034).

The spelling of 220111012011012 in words is "two hundred twenty trillion, one hundred eleven billion, twelve million, eleven thousand, twelve".