11220021012100 has 18 divisors (see below), whose sum is σ = 24347445596474. Its totient is φ = 4488008404800.

The previous prime is 11220021012097. The next prime is 11220021012103. The reversal of 11220021012100 is 121012002211.

11220021012100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (11220021012097) and next prime (11220021012103).

It can be written as a sum of positive squares in 3 ways, for example, as 15630500484 + 11204390511616 = 125022^2 + 3347296^2 .

It is not an unprimeable number, because it can be changed into a prime (11220021012103) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 56100104961 + ... + 56100105160.

Almost surely, 2^{11220021012100} is an apocalyptic number.

11220021012100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11220021012100 is an abundant number, since it is smaller than the sum of its proper divisors (13127424584374).

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

11220021012100 is a wasteful number, since it uses less digits than its factorization.

11220021012100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112200210135 (or 112200210128 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 11220021012100 its reverse (121012002211), we get a palindrome (11341033014311).

The spelling of 11220021012100 in words is "eleven trillion, two hundred twenty billion, twenty-one million, twelve thousand, one hundred".