1011011001222 has 128 divisors (see below), whose sum is σ = 2238004339200. Its totient is φ = 303039543296.

The previous prime is 1011011001211. The next prime is 1011011001227. The reversal of 1011011001222 is 2221001101101.

It is a junction number, because it is equal to n+sod(n) for n = 1011011001198 and 1011011001207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011011001227) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 512422228 + ... + 512424200.

It is an arithmetic number, because the mean of its divisors is an integer number (17484408900).

Almost surely, 2^{1011011001222} is an apocalyptic number.

1011011001222 is an abundant number, since it is smaller than the sum of its proper divisors (1226993337978).

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

1011011001222 is a wasteful number, since it uses less digits than its factorization.

1011011001222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3750.

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

Adding to 1011011001222 its reverse (2221001101101), we get a palindrome (3232012102323).

The spelling of 1011011001222 in words is "one trillion, eleven billion, eleven million, one thousand, two hundred twenty-two".