11221000101 has 24 divisors (see below), whose sum is σ = 17000365824. Its totient is φ = 7123615200.

The previous prime is 11221000079. The next prime is 11221000139. The reversal of 11221000101 is 10100012211.

It is a happy number.

It is not a de Polignac number, because 11221000101 - 2⁷ = 11220999973 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11221000151) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 342825 + ... + 374126.

It is an arithmetic number, because the mean of its divisors is an integer number (708348576).

Almost surely, 2^11221000101 is an apocalyptic number.

It is an amenable number.

11221000101 is a deficient number, since it is larger than the sum of its proper divisors (5779365723).

11221000101 is a wasteful number, since it uses less digits than its factorization.

11221000101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 717041 (or 717038 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 11221000101 its reverse (10100012211), we get a palindrome (21321012312).

The spelling of 11221000101 in words is "eleven billion, two hundred twenty-one million, one hundred one", and thus it is an aban number.