1011121100022 has 64 divisors (see below), whose sum is σ = 2338638220800. Its totient is φ = 288032801280.

The previous prime is 1011121100009. The next prime is 1011121100051. The reversal of 1011121100022 is 2200011211101.

It is a junction number, because it is equal to n+sod(n) for n = 1011121099980 and 1011121100007.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 404304 + ... + 1478412.

It is an arithmetic number, because the mean of its divisors is an integer number (36541222200).

Almost surely, 2^{1011121100022} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1011121100022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1169319110400).

1011121100022 is an abundant number, since it is smaller than the sum of its proper divisors (1327517120778).

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

1011121100022 is a wasteful number, since it uses less digits than its factorization.

1011121100022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1074981.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1011121100022 its reverse (2200011211101), we get a palindrome (3211132311123).

The spelling of 1011121100022 in words is "one trillion, eleven billion, one hundred twenty-one million, one hundred thousand, twenty-two".