11221641651 has 16 divisors (see below), whose sum is σ = 16669675008. Its totient is φ = 6656292000.

The previous prime is 11221641593. The next prime is 11221641667. The reversal of 11221641651 is 15614612211.

It is not a de Polignac number, because 11221641651 - 2¹⁰ = 11221640627 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11221648651) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 3616000 + ... + 3619101.

It is an arithmetic number, because the mean of its divisors is an integer number (1041854688).

Almost surely, 2^11221641651 is an apocalyptic number.

11221641651 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11221641651 is a deficient number, since it is larger than the sum of its proper divisors (5448033357).

11221641651 is a wasteful number, since it uses less digits than its factorization.

11221641651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7235162.

The product of its digits is 2880, while the sum is 30.

The spelling of 11221641651 in words is "eleven billion, two hundred twenty-one million, six hundred forty-one thousand, six hundred fifty-one".