11011223100 has 72 divisors (see below), whose sum is σ = 32399176320. Its totient is φ = 2886553280.

The previous prime is 11011223099. The next prime is 11011223101. The reversal of 11011223100 is 132211011.

It is an interprime number because it is at equal distance from previous prime (11011223099) and next prime (11011223101).

It is a super-2 number, since 2×11011223100² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11011223101) 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, 293352 + ... + 328751.

It is an arithmetic number, because the mean of its divisors is an integer number (449988560).

Almost surely, 2^11011223100 is an apocalyptic number.

11011223100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11011223100 is an abundant number, since it is smaller than the sum of its proper divisors (21387953220).

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

11011223100 is a wasteful number, since it uses less digits than its factorization.

11011223100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622179 (or 622172 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 11011223100 its reverse (132211011), we get a palindrome (11143434111).

The spelling of 11011223100 in words is "eleven billion, eleven million, two hundred twenty-three thousand, one hundred".