11222100001 has 12 divisors (see below), whose sum is σ = 13183535700. Its totient is φ = 9523701600.

The previous prime is 11222099971. The next prime is 11222100023. The reversal of 11222100001 is 10000122211.

It can be written as a sum of positive squares in 2 ways, for example, as 6570723600 + 4651376401 = 81060^2 + 68201^2 .

It is not a de Polignac number, because 11222100001 - 2²⁹ = 10685229089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11222100031) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1128826 + ... + 1138723.

It is an arithmetic number, because the mean of its divisors is an integer number (1098627975).

Almost surely, 2^11222100001 is an apocalyptic number.

It is an amenable number.

11222100001 is a deficient number, since it is larger than the sum of its proper divisors (1961435699).

11222100001 is a wasteful number, since it uses less digits than its factorization.

11222100001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2267664 (or 2267657 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 11222100001 its reverse (10000122211), we get a palindrome (21222222212).

The spelling of 11222100001 in words is "eleven billion, two hundred twenty-two million, one hundred thousand, one".