11220021021012 has 24 divisors (see below), whose sum is σ = 26180183126496. Its totient is φ = 3739987853088.

The previous prime is 11220021020963. The next prime is 11220021021037. The reversal of 11220021021012 is 21012012002211.

It is a junction number, because it is equal to n+sod(n) for n = 11220021020982 and 11220021021000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155098 + ... + 4739630.

It is an arithmetic number, because the mean of its divisors is an integer number (1090840963604).

Almost surely, 2^{11220021021012} is an apocalyptic number.

11220021021012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11220021021012 is an abundant number, since it is smaller than the sum of its proper divisors (14960162105484).

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

11220021021012 is a wasteful number, since it uses less digits than its factorization.

11220021021012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4788487 (or 4788485 counting only the distinct ones).

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

Adding to 11220021021012 its reverse (21012012002211), we get a palindrome (32232033023223).

The spelling of 11220021021012 in words is "eleven trillion, two hundred twenty billion, twenty-one million, twenty-one thousand, twelve".