1011211144 has 8 divisors (see below), whose sum is σ = 1896020910. Its totient is φ = 505605568.

The previous prime is 1011211127. The next prime is 1011211163. The reversal of 1011211144 is 4411121101.

1011211144 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 862127044 + 149084100 = 29362^2 + 12210^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63200689 + ... + 63200704.

Almost surely, 2^1011211144 is an apocalyptic number.

It is an amenable number.

1011211144 is a deficient number, since it is larger than the sum of its proper divisors (884809766).

1011211144 is a wasteful number, since it uses less digits than its factorization.

1011211144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126401399 (or 126401395 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

The square root of 1011211144 is about 31799.5462860714. The cubic root of 1011211144 is about 1003.7231688105.

Adding to 1011211144 its reverse (4411121101), we get a palindrome (5422332245).

The spelling of 1011211144 in words is "one billion, eleven million, two hundred eleven thousand, one hundred forty-four".