1011220222012 has 288 divisors, whose sum is σ = 2633553216000. Its totient is φ = 332649192960.

The previous prime is 1011220222003. The next prime is 1011220222039. The reversal of 1011220222012 is 2102220221101.

It is a happy number.

It is a congruent number.

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 95 ways as a sum of consecutive naturals, for example, 15410689 + ... + 15476167.

It is an arithmetic number, because the mean of its divisors is an integer number (9144282000).

Almost surely, 2^{1011220222012} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1011220222012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1316776608000).

1011220222012 is an abundant number, since it is smaller than the sum of its proper divisors (1622332993988).

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

1011220222012 is a wasteful number, since it uses less digits than its factorization.

1011220222012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65569 (or 65560 counting only the distinct ones).

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

Adding to 1011220222012 its reverse (2102220221101), we get a palindrome (3113440443113).

The spelling of 1011220222012 in words is "one trillion, eleven billion, two hundred twenty million, two hundred twenty-two thousand, twelve".