11220011001000 has 128 divisors (see below), whose sum is σ = 38896038230400. Its totient is φ = 2992002926400.

The previous prime is 11220011000999. The next prime is 11220011001037. The reversal of 11220011001000 is 10011002211.

It is a happy number.

It is a super-2 number, since 2×11220011001000² (a number of 27 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 207750982 + ... + 207804981.

It is an arithmetic number, because the mean of its divisors is an integer number (303875298675).

Almost surely, 2^{11220011001000} is an apocalyptic number.

11220011001000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11220011001000 is an abundant number, since it is smaller than the sum of its proper divisors (27676027229400).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11220011001000 is a wasteful number, since it uses less digits than its factorization.

11220011001000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415555993 (or 415555973 counting only the distinct ones).

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

Adding to 11220011001000 its reverse (10011002211), we get a palindrome (11230022003211).

The spelling of 11220011001000 in words is "eleven trillion, two hundred twenty billion, eleven million, one thousand".