1101211144 has 16 divisors (see below), whose sum is σ = 2252477520. Its totient is φ = 500550480.

The previous prime is 1101211141. The next prime is 1101211183. The reversal of 1101211144 is 4411121011.

It is not an unprimeable number, because it can be changed into a prime (1101211141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6256794 + ... + 6256969.

It is an arithmetic number, because the mean of its divisors is an integer number (140779845).

Almost surely, 2^1101211144 is an apocalyptic number.

It is an amenable number.

1101211144 is an abundant number, since it is smaller than the sum of its proper divisors (1151266376).

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

1101211144 is a wasteful number, since it uses less digits than its factorization.

1101211144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12513780 (or 12513776 counting only the distinct ones).

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

The square root of 1101211144 is about 33184.5015632298. The cubic root of 1101211144 is about 1032.6588370606.

Adding to 1101211144 its reverse (4411121011), we get a palindrome (5512332155).

The spelling of 1101211144 in words is "one billion, one hundred one million, two hundred eleven thousand, one hundred forty-four".