11220010988 has 12 divisors (see below), whose sum is σ = 19642758240. Its totient is φ = 5607794352.

The previous prime is 11220010987. The next prime is 11220010993. The reversal of 11220010988 is 88901002211.

It is a super-2 number, since 2×11220010988² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (11220010981) 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 3 ways as a sum of consecutive naturals, for example, 541343 + ... + 561686.

It is an arithmetic number, because the mean of its divisors is an integer number (1636896520).

Almost surely, 2^11220010988 is an apocalyptic number.

It is an amenable number.

11220010988 is a deficient number, since it is larger than the sum of its proper divisors (8422747252).

11220010988 is a wasteful number, since it uses less digits than its factorization.

11220010988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1105576 (or 1105574 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 32.

The spelling of 11220010988 in words is "eleven billion, two hundred twenty million, ten thousand, nine hundred eighty-eight".