11102021044 has 6 divisors (see below), whose sum is σ = 19428536834. Its totient is φ = 5551010520.

The previous prime is 11102021023. The next prime is 11102021057. The reversal of 11102021044 is 44012020111.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 5781777444 + 5320243600 = 76038^2 + 72940^2 .

It is a super-2 number, since 2×11102021044² (a number of 21 digits) contains 22 as substring.

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 as a sum of consecutive naturals, namely, 1387752627 + ... + 1387752634.

Almost surely, 2^11102021044 is an apocalyptic number.

It is an amenable number.

11102021044 is a deficient number, since it is larger than the sum of its proper divisors (8326515790).

11102021044 is a wasteful number, since it uses less digits than its factorization.

11102021044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2775505265 (or 2775505263 counting only the distinct ones).

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

Adding to 11102021044 its reverse (44012020111), we get a palindrome (55114041155).

The spelling of 11102021044 in words is "eleven billion, one hundred two million, twenty-one thousand, forty-four".