11221122020100 has 36 divisors (see below), whose sum is σ = 32466446379024. Its totient is φ = 2992299205280.

The previous prime is 11221122020099. The next prime is 11221122020123. The reversal of 11221122020100 is 102022112211.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 11221122020100.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18701869734 + ... + 18701870333.

Almost surely, 2^{11221122020100} is an apocalyptic number.

11221122020100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11221122020100 is an abundant number, since it is smaller than the sum of its proper divisors (21245324358924).

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

11221122020100 is a wasteful number, since it uses less digits than its factorization.

11221122020100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37403740084 (or 37403740077 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 11221122020100 its reverse (102022112211), we get a palindrome (11323144132311).

The spelling of 11221122020100 in words is "eleven trillion, two hundred twenty-one billion, one hundred twenty-two million, twenty thousand, one hundred".